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Open Access Publications from the University of California

Images in Emergency Medicine

Bezold Abscess in a Case of Eosinophilic Otitis Media

Case Presentation: A 57-year-old man with a history of bronchial asthma and eosinophilic sinusitis presented to the emergency department with an exacerbation of otitis media. His primary complaints were otopyorrhea, headache, and neck pain with redness. Contrast-enhanced computed tomography revealed a posterior neck abscess contiguous with the mastoid process. The patient underwent mastoidectomy and received antimicrobial therapy. Eosinophilic granulation tissue in the middle ear obstructed the middle ear aditus and directed the inflammatory process toward the mastoid tip. 

Discussion: Bezold abscess is a rare extracranial complication of acute mastoiditis. Therefore, clinicians should consider neck pain with redness as an important physical sign that suggests Bezold abscess in patients with otitis media.

Point-of-care Ultrasound Diagnosed Intraocular Breast Metastasis

Case Presentation: A 60-year-old female presented to the emergency department with unilateral eye pain and vision loss. Point-of-care ultrasound (POCUS) was performed, which demonstrated ocular metastatic lesions of breast cancer.

Discussion: Ocular metastasis is rare, clinically challenging, and may present with a wide range of ophthalmic symptoms. However, POCUS may safely and rapidly identify metastatic lesions to direct further care.

Spinal Arachnoid Web

Case Presentation: We describe a case of a 57-year-old male with multiple medical comorbidities who presented to the emergency department with a two-week history of upper back pain with associated numbness. Physical exam demonstrated sensory loss in a bilateral third and fourth thoracic dermatome distribution. The diagnosis of spinal arachnoid web was made based on neurological exam and imaging findings.

Discussion: Spinal arachnoid web is a rare diagnosis, but consideration is important, as early recognition and surgical intervention can resolve symptoms and prevent worsening neurological sequelae.

  • 1 supplemental video

A Woman with Right Shoulder Pain

Case Presentation: We report a case of an 89-year-old female who presented with pain in her right shoulder following a fall onto her outstretched hand. Upon presentation, her right hand was held behind her head and elbow held above her head in flexion. There was obvious deformity seen and felt in her axilla. Radiograph of the shoulder showed an inferior shoulder dislocation and impacted humeral neck fracture. Given her age and comorbid osteoporosis, a bedside reduction was performed by orthopedics where the humeral head was intentionally dislocated from the humeral shaft. Thirteen days after the initial shoulder dislocation, the patient’s shoulder was successfully repaired by open reduction.


Discussion: Luxatio erecta, which means “erect dislocation” in Latin, refers to an inferior shoulder dislocation. It accounts for less than 1% of shoulder dislocations. Our case report highlights an inferior shoulder dislocation with a rare, concomitant humeral neck fracture, managed via staged reduction by orthopedics with intentional dislocation of the humeral head given concern over patient’s age and osteoporosis. The patient was eventually successfully repaired via arthroplasty within two weeks.


Keywords: inferior shoulder dislocation; luxatio erecta; shoulder pain.

Point-of-Care Ultrasound for Earlier Detection of Pediatric Pneumonia

Case Presentation: An 8-month-old infant presented to a general emergency department with chief complaints of rhinorrhea, decreased activity, and fever. A point-of-care lung ultrasound (LUS) was performed at bedside with potential early findings of pneumonia. Based on these findings on LUS, a chest radiograph (CXR) was ordered and performed with no acute findings. He was discharged without antibiotics based on these findings; unfortunately, he returned two days later with worsening symptoms requiring chest tube placement, mechanical ventilation, and prolonged hospitalization for complicated bacterial pneumonia.

Discussion: Pneumonia is a major cause of pediatric morbidity and mortality worldwide. Despite evidence supporting the utilization of LUS for the diagnosis of pediatric pneumonia, CXR remains the default imaging for clinical decision-making in most settings. In this case, earlier antibiotics and higher reliance on LUS for clinical decision-making may have prevented the morbidity associated with this hospitalization.

Painful Enlarging Cervical Mass in Young Male

Case Presentation: A 32-year-old male who recently immigrated from Kenya presented to the emergency department (ED) with a painful, enlarging, right-sided neck mass for eight weeks duration. Point-of-care ultrasound was used to reveal a large cystic mass with internal septations and numerous hypoechoic round lesions. Initial tuberculosis blood test ordered in the ED was positive with cultures ultimately growing Mycobaceterium tuberculosis.

Discussion: Scrofula should be considered in the differential in patients presenting with enlarging neck masses who have epidemiological risk factors for tuberculosis.

Atraumatic Infected Septal Hematoma in a Pediatric Patient

Case Presentation: We present a case of a 10-year-old male who developed an atraumatic, nasal septal hematoma with abscess following several days of rhinorrhea and cough. His chief complaint to the emergency department was a two-day history of nasal swelling and discomfort, associated with difficulty breathing through his nose. The patient was well-appearing with swelling and tenderness along the external nasal ridge and nasal septal swelling that occluded both nares. Contrast-enhanced maxillofacial computed tomography revealed a rim-enhancing, fluid-filled collection to the anterior nasal septum. The patient underwent successful incision and drainage by otolaryngology.


Discussion: Infected septal hematomas are rare but important to recognize as they can result in septal deformity and potentially life-threatening sequelae, such as intracranial infections. Most are secondary to nasal trauma in adult patients. This case highlights a unique presentation of atraumatic septal hematoma with abscess formation in an immunocompetent pediatric patient.

Brugada Syndrome and Sudden Cardiac Death: An Electrocardiographic History

Case Presentation: A 22-year-old male with a history of anti-neutrophil cytoplasmic antibody vasculitis, renal transplant, hypertension, and no known family history of sudden cardiac death suffered a witnessed cardiac arrest. An initial rhythm strip recorded by emergency medical services revealed ventricular fibrillation. Return of spontaneous circulation was achieved after three rounds of cardiopulmonary resuscitation, defibrillation, and intravenous epinephrine. The patient was brought to the emergency department and admitted to the intensive care unit. He was diagnosed with Brugada syndrome, and an automatic implantable cardioverter-defibrillator (AICD) was placed after discharge.

Discussion: Brugada syndrome is characterized electrocardiographically by ≥2 millimeters (mm) ST-segment elevation in leads V1–V2 with either “coved type” (type 1) or “saddleback” (type 2) ST-segment morphology, or ≤2 mm ST-segment elevation in V1–V2 with either “coved” or “saddleback” morphology (type 3). The absence of these patterns on isolated electrocardiograms (ECG) does not exclude the diagnosis, as dynamic fluctuations in ECG patterns are well-documented and can be induced by various physiologic stressors. This case provides an uncommon, complete electrocardiographic history of Brugada syndrome, from out-of-hospital cardiac arrest to AICD placement and depicts dynamic fluctuations between Brugada patterns and normal ECGs. This highlights the importance of serial ECGs in diagnosis, as sudden cardiac death is often the first or only presentation of Brugada syndrome.

Clinicopathological Cases from the University of Maryland

A 77-Year-Old Male with a Rapid Change in Mental Status

A 77-year-old male who presented to the emergency department with generalized weakness and worsening chronic dysphagia was diagnosed with pneumonia. Shortly after receiving vascular access for his treatment, he had a rapid change in his mental status and neurological examination.

Case Reports

Pneumothorax Identified by a Remote Physician Using Paramedic-obtained Tele-ultrasound: Case Report

Introduction: The use of telemedicine and ultrasound is emerging and novel in the field of community paramedicine. However, there is a paucity of data supporting its use and even less evidence that shows a morbidity and mortality benefit. This case highlights a unique way to diagnose a common medical emergency, which can lead to a good outcome.

Case Report: We describe the use of lung point-of-care ultrasound by a trained community paramedic that led to the identification of a pneumothorax in an 86-year-old male at a scheduled home visit. The images were interpreted over telehealth in real-time by an emergency physician, and the patient was transported to the emergency department where the diagnosis was confirmed by chest radiography. He underwent chest tube placement and was discharged five days later after returning to his baseline.

Conclusion: Despite minimal data to support or refute the use of paramedic tele-ultrasound, this case highlights a unique opportunity to expand the use of telemedicine and ultrasound in community paramedicine to improve patient outcomes.

Renal Artery Aneurysm Rupture as a Dangerous Mimic of Ovarian Cyst Rupture: A Case Report

Introduction: Renal artery aneurysm rupture is a rare but morbid diagnosis, often requiring emergency surgery and nephrectomy. Clinical presentation can mimic more common pathology in non-pregnant women such as ruptured ovarian cyst.

Case Report: We present a case of a woman with a prior history of ovarian cyst presenting with a ruptured renal artery aneurysm. Prompt computed tomography (CT) imaging revealed a left renal artery aneurysm rupture with hemoperitoneum and renal infarct. She underwent emergency laparotomy and nephrectomy and was ultimately discharged in good condition.

Conclusion: While ovarian cyst rupture is the most common cause of spontaneous hemoperitoneum in non-pregnant women of childbearing age, renal artery aneurysm rupture should be considered and prompt CT imaging obtained, particularly in cases of hemodynamic instability, to ensure prompt treatment.

Capnocytophaga ochracea Septicemia After a Dog Bite: The Case of a Usual Suspect Transmitting an Unusual Organism

Introduction: Capnocytophaga ochracea is found in the human oral microbiome and is a rare cause of antibiotic-resistant, opportunistic septicemia in immunocompromised hosts. The zoonotic transmission of C ochracea from canines to humans has not yet been reported in the literature. Cohabitation with people is associated with oral colonization in dogs and may be a reservoir for Capnocytophaga infections, which have a decreased susceptibility to first-line antibiotics commonly used to treat animal exposures.

Case Report: This is the case of a 70-year-old male with a remote history of lymphoma status post splenectomy, in remission, who presented with stigmata of Capnocytophaga septicemia after a dog bite, which included purpura fulminans on physical examination. Initial broad-spectrum coverage with cefepime failed to slow the progression into multiorgan failure. A Capnocytophaga strain with extended resistance was suspected. Antibiotics were transitioned to meropenem, and the patient eventually made a good recovery. Blood cultures isolated C ochracea.

Conclusion: Capnocytophaga infections should be suspected in patients with severe sepsis and purpura fulminans after a canine exposure. Canine pets may be a reservoir for Capnocytophaga species with increased antibiotic resistances, such as C ochracea, which trace their origins to the human oral microbiome. A thorough medical history is essential to identify risk factors such as asplenia and active immune compromise that are associated with infections from antibiotic-resistant strains and worse outcomes. For Capnocytophaga infections that fail initial therapies, cephalosporins should be avoided because of high resistance rates, and the use of carbapenems may be favored over combination beta-lactam/beta-lactamase inhibitors in select clinical scenarios.

High-altitude Cerebral Edema and High-altitude Pulmonary Edema Diagnosed in the Desert: A Case Report

Introduction: Acute mountain sickness, high-altitude pulmonary edema (HAPE), and high-altitude cerebral edema (HACE) are a spectrum of high-altitude conditions, with HACE being the most life-threatening. Most cases develop at altitudes of greater than 4,000 meters (~13,000 feet) above sea level and after one to five days.

Case Report: A previously healthy 46-year-old female presented to the emergency department with ataxia, altered mental status, and vomiting that developed after rapidly ascending to ~2,400 meters (~7,800 feet) above sea level. She was treated for HACE and HAPE with resolution of her symptoms within 24 hours.

Conclusion: High-altitude pulmonary edema and HACE can develop rapidly and at moderate altitudes. Expeditious recognition and treatment is imperative to avoid life-threatening complications.

Acute Confusional Migraines: A Case Report

Introduction: Acute confusional migraine (ACM) is a rare variant of migraine that is benign and self-resolving but difficult to diagnose. Without known causative pathophysiology and a lack of recognition in the International Classification of Headache Disorders (ICHD-3), ACM offers a puzzling clinical presentation. There currently is no standardized treatment for ACM, but with a growing anecdotal dataset there is the opportunity to formally recognize and establish protocols to improve patient care and outcomes.

Case Report: A 14-year-old female presented to the emergency department (ED) with acute onset of confusion, vision changes, right-sided weakness, and dysarthria one hour prior to arrival. A stroke workup at the initial ED offered no pertinent findings. The patient was transferred to a pediatric specialty ED where all symptoms, aside from numbness and a mild headache, resolved during transfer. After administration of a migraine cocktail at the pediatric specialty ED, all remaining symptoms completely resolved. The patient was discharged home from the ED the same evening with outpatient follow-up.

Conclusion: This case presents the difficulty of diagnosing and treating ACM prior to its self-resolution. It highlights the need for formal recognition of the condition by the ICHD-3. In doing so, greater recognition will promote more research, awareness, and establishment of a standardized treatment for ACM.

Spontaneous Osteomyelitis and Intraosseous Abscess: A Case Report

Introduction: Acute hematogenous osteomyelitis may have significant morbidity and mortality if undiagnosed. Because it is uncommon in developed countries and has variable presentations, the patient may undergo several healthcare visits prior to diagnosis.

Case Report: We report the case of a 9-year-old male who presented with hip and knee pain with associated fevers and was found to have osteomyelitis and intraosseous abscess in the diaphysis of the right femur. He had multiple emergency department and outpatient visits before the ultimate diagnosis was made. He was treated with irrigation and debridement in addition to intravenous antibiotics.

Conclusion: Pediatric acute hematogenous osteomyelitis can have subtle presentations, and this case illustrates some of the difficulties in making the diagnosis. This condition should be considered in the workup of a child with undifferentiated fever, pain, or decrease in mobility.

A Case Report of Wünderlich Syndrome Causing Massive Hemorrhage During Hemodialysis

Introduction: Wünderlich syndrome (WS) refers to subcapsular, perirenal, or pararenal hemorrhage due to non-traumatic and iatrogenic conditions. Neoplasms, vascular disease, renal etiology, and anticoagulant use are underlying risk factors.

Case Report: We describe a case of WS in a 79-year-old male who was undergoing hemodialysis, which resulted in hemorrhagic shock requiring multiple transfusions and embolization by interventional radiology.

Conclusion: Most commonly, patients present with flank pain; a computed tomography with contrast of the abdomen is essential for diagnosis. Surgical intervention is considered in hemodynamically unstable patients. Conservative therapy and intravenous resuscitations with blood products are considered a priority in hemodynamically stable patients.

A Case Report of Crotalidae Immune F(ab’)2-associated Coagulopathy Recurrence in a Preschool-age Child

Introduction: Pit viper envenomation may cause coagulopathy. The coagulopathy has been treated with crotalidae polyvalent immune fragment antigen-binding (Fab) ovine antivenom for the last few decades in the United States and usually corrects the acute coagulopathy within hours. Days after receiving Fab, coagulopathy may recur in approximately half of the patients. Another divalent antivenom, crotalidae immune F(ab’)2 (equine)–F(ab’)2–was approved by the US Food and Drug Administration for the treatment of pit viper envenomation. F(ab’)2 is composed of two linked antigen-binding fragments of immunoglobulin G. Several studies have demonstrated that F(ab’)2 is less likely to be associated with recurrence. There is no reported case of F(ab’)2-associated late coagulopathy in very young patients. We report the first case of recurrence associated with F(ab’)2 use in a preschool-age child.

Case Report: A preschool-age male developed leg swelling and hypofibrinogenemia after rattlesnake envenomation. F(ab’)2 was administered to stabilize the leg edema and to correct the hypofibrinogenemia. The patient improved clinically and was discharged on hospital day five. Seven days after the rattlesnake envenomation, he returned to the emergency department as instructed. Laboratory data revealed recurrent hypofibrinogenemia.

Conclusion: There are two antivenoms available in the US to treat crotalid envenomation, Fab and F(ab’)2. F(ab’)2 is less likely to be associated with recurrent coagulopathy in comparison to Fab. We report the first case of recurrence associated with F(ab’)2 in a preschool-age child. It is important that the emergency physician be aware of potential F(ab’)2-associated recurrent coagulopathy. Adult and pediatric patients may need to follow up to be evaluated for hypofibrinogenemia and/or thrombocytopenia after receiving F(ab’)2.

A Case Report of Delayed Opioid Toxidrome After Administration of Naloxone

Introduction: Opioid use is an epidemic that plagues the United States. Patients frequently present to the emergency department (ED) after opioid toxicity, which can lead to respiratory failure, apnea, and death. Although there is an effective antidote, naloxone, the current guidelines surrounding post-naloxone administration monitoring are loosely defined.

Case Report: We present a case in which an individual was administered naloxone after an intentional opioid overdose and was monitored for four hours, as is standard in our institution. He remained in the ED for additional workup following this observation period and subsequently experienced signs of severe respiratory depression, requiring bag-valve-mask ventilation, naloxone, and admission. Had he been discharged, as is typical after a four-hour observation period, the consequences could have been fatal. We present multiple theories as to why his opioid toxidrome may have presented in a delayed manner, including ingestion of fentanyl analogues and variability in metabolization of both opioids and naloxone. We also explore alternative overdose antidote products approved by the US Food and Drug Administration, which may impact post overdose care.

Conclusion: This case suggests that the correct amount of time to monitor patients after naloxone administration may be longer than originally thought. Our aim in this article was to further the discussion regarding the most appropriate observation period in cases of opioid toxicity.

Testicular Traction Technique with Intact Cremasteric Reflex, a Novel Approach for Manual Detorsion: Case Report

Introduction: Recognizing testicular torsion is extremely important in patients presenting to the emergency department (ED) with acute scrotal pain. Traditional manual detorsion techniques are frequently employed by emergency physicians but are not always successful. Delays in detorsion increase the risk of testicular infarction and infertility, and the need for orchiectomy. Novel techniques such as the testicular traction technique have been described as a potential solution for difficult-to-detorse testicles.

Case Report: Our case report describes a 20-year-old male with no significant past medical history who presented to a rural ED with acute, atraumatic testicular pain secondary to testicular torsion with an intact cremasteric reflex. After confirming the diagnosis using Doppler ultrasound, manual detorsion using the traditional “open book” technique was attempted and unsuccessful. The patient was subsequently successfully detorsed using the novel testicular traction technique.

Conclusion: The testicular traction technique is a safe, rapid, and effective primary or adjunctive technique in manual testicular detorsion. Given the time-sensitive nature of testicular torsions, adjunctive techniques play a crucial role in managing challenging detorsions, particularly in resource-limited rural settings with limited access to urologic services. Although it is commonly thought that the cremasteric reflex is absent in testicular torsions, it may be present in rare circumstances, and its presence should not be an absolute in ruling out torsion.

A Case Report of Hematogenous Osteomyelitis of the Manubrium Caused by Seeding from a Colovesicular Fistula

Introduction: Osteomyelitis can occur at various osseous locations and commonly presents in the emergency department (ED). The incidence of osteomyelitis is 21.8 cases per 100,000 persons annually.1 Hematogenous osteomyelitis typically occurs in the vertebrae; however, it may seldomly occur in the manubrium. Hematogenous osteomyelitis can be seen in patients with complicated thoracic surgery, radiation, fracture, diabetes, immunosuppression, steroid therapy, and malnutrition.2 Because signs and symptoms of osteomyelitis may be nonspecific, clinicians must have high suspicion based on history and physical. Workup should include identifying the source, imaging, and surgical cultures.

Case Report: A 60-year-old male with hypertension and diabetes presented with atraumatic right shoulder and chest pain. The patient presented twice to the ED for clavicle pain five days prior. Computed tomography (CT) of the chest detected osseous infection of the manubrium and upper sternum, right clavicle, and mediastinal phlegmon. A CT of the abdomen and pelvis revealed osteomyelitis and discitis of the 12th thoracic and first lumbar vertebral body with gas at the psoas muscle, as well as sigmoid diverticulitis with colovesicular fistula. The patient was started on broad spectrum antibiotics and 1,500 milliliters of lactated Ringer’s in the ED. After evaluation by cardiothoracic surgery, the patient was taken to the operating room for neck exploration, incision/drainage, manubriectomy, and right sternoclavicular joint resection. Surgical, blood, urine, and respiratory cultures grew Klebsiella pneumoniae. After a 34-day hospital course, the patient was discharged on two weeks of oral levofloxacin and follow-up appointments with cardiothoracic surgery and infectious disease. The patient had good prognosis and recovery.

Conclusion: Hematogenous osteomyelitis to the manubrium is rare and may present with only chest pain. It is important to consider other sources that seed in the manubrium and imaging to evaluate multisite infection. Treatment should include intravenous antibiotics and/or surgical intervention for debridement with washout or manubriectomy.

Ultrasound-guided Supraclavicular Brachial Plexus Block for Therapeutic Management of Postoperative Compressive Brachial Plexus Neuropathy: A Case Report

Introduction: Compressive neuropathy of the brachial plexus is a common issue following laparoscopic and robotic surgeries.


Case Report: A 71-year-old male, post-lumbar spinal surgery, presented with excruciating right upper extremity pain and paresthesias. A supraclavicular brachial plexus (SBP) block with bupivacaine provided significant pain relief, lasting 36 hours. Subsequent physical therapy led to gradual pain and weakness improvement in compressive neuropathy.


Discussion: The SBP block, facilitated by ultrasound guidance, is a safe procedure with few serious complications. It proves beneficial for managing postoperative compressive neuropathy, allowing patients to break pain cycles and participate in rehabilitation.


Conclusion: The SBP block is an effective addition to the management of postoperative compressive neuropathy, given its ease, safety, and potency. Although regional anesthesia provides only temporary relief, patients can experience a break in debilitating pain cycles associated with compressive neuropathy.

  • 1 supplemental video

Neurogenic Pulmonary Edema Associated with Hyponatremia, Primary Polydipsia, and Cannabis Use: A Case Report

Introduction: Neurogenic pulmonary edema is a rare and potentially life-threatening condition that can present as severe pulmonary edema after significant neurologic insults. This is the first documented instance that shows a plausible causal link between cannabis consumption, psychogenic polydipsia, and the subsequent development of neurogenic pulmonary edema associated with status epilepticus secondary to acute hyponatremia.

Case Report: We report a case of a 34-year-old female who presented to the emergency department altered and postictal after a witnessed new-onset seizure. She developed significant respiratory distress that required intubation. Her sodium was 121 millimoles per liter (mmol/L), from 137 mmol/L 36 hours prior on routine outpatient labs. Further history revealed excessive water ingestion after eating a cannabis edible prior to the seizure.

Conclusion: This case highlights the importance of recognizing neurogenic pulmonary edema in connection with psychogenic polydipsia, severe hyponatremia, and status epilepticus subsequent to cannabis consumption.

Spontaneous Intracranial Hypotension Associated with Marfan Syndrome: A Case Report

Introduction: Spontaneous intracranial hypotension (SIH) is an uncommon and frequently misdiagnosed condition characterized by a lower-than-normal volume of cerebrospinal fluid (CSF) caused by leakage of CSF through the dural membrane. The primary manifestation of SIH is an orthostatic headache, which is frequently accompanied by nausea and vomiting. Patients with connective tissue disorders are at increased risk for spontaneous CSF leaks due to the structural weakness of their dural membranes.

Case Report: An 18-year-old woman with no reported past medical history presented to the emergency department with 10 days of a bifrontal headache that was orthostatic in nature with associated nausea and vomiting. She was noted to have several marfanoid features on physical examination. Spontaneous intracranial hypotension was ultimately diagnosed and treated successfully with an epidural blood patch. Subsequent genetic testing revealed a diagnosis of Marfan syndrome.

Conclusion: Spontaneous intracranial hypotension is an uncommon cause of headache. Individuals with connective tissue disorders such as Marfan syndrome are at increased risk for SIH. Knowledge of the relationship between these two conditions allows for a more rapid diagnosis of SIH.

Atrial Fibrillation Occurring After Smoking Marijuana: A Case Report and Review of the Literature

Introduction: Atrial fibrillation (AF) is the most common cardiac arrhythmia, occurring primarily in individuals with known risk factors such as advanced age, heart failure, and coronary artery disease. Cannabis use produces several cardiovascular changes resulting in proarrhythmic effects on the heart.

Case Report: A 38-year-old woman with no significant past medical history presented to the emergency department (ED) complaining of palpitations with associated shortness of breath occurring after smoking marijuana. She was found to be in AF. Evaluation in the ED and during hospitalization found no cardiac or metabolic conditions that predisposed to AF. The AF resolved within three hours of onset
without intervention.

Conclusion: Cannabis use should be considered as a possible etiology of new-onset AF, especially in relatively young patients with no other predisposing risk factors.

ST-Elevation Myocardial Infarction Due to Coronary Vasospasm Associated with Eosinophilic Granulomatosis with Polyangiitis: A Case Report

Introduction: ST-elevation myocardial infarction (STEMI) can be caused by underlying coronary artery vasospasm (CAV) with or without associated atherosclerotic disease. Coronary artery vasospasm is a rare but potentially devastating manifestation of eosinophilic granulomatosis with polyangiitis (EGPA).


Case Report: We describe a 54-year-old male with a known history of EGPA and coronary artery disease presenting to the emergency department with chest pain and an inferior STEMI on electrocardiogram. He was ultimately taken for coronary angiography and found to have a discrete vasospastic lesion in the right coronary artery that was treated with intra-coronary nitroglycerin and calcium channel blockers. He was continued on immunosuppressant agents (prednisone and mepolizumab) for management of EGPA and followed up with outpatient cardiology and rheumatology for vasospastic angina.


Conclusion: This case highlights a rare cause of STEMI, discusses the nuances in treatment of STEMI due to CAV, and provides background on pathophysiology and treatment of EGPA.

Point-of-Care Ultrasound Findings in Occlusive Iliac Vein Thrombus During Pregnancy: A Case Report

Introduction: Diagnosing deep venous thromboses and venous thromboemboli (DVT/VTE) in pregnant patients presents a unique challenge for emergency physicians. The risk of DVT/VTE increases during pregnancy, and the potential consequences of misdiagnoses are severe. Point-of-care ultrasonography (POCUS) is frequently a first-line diagnostic imaging modality. However, recent studies have shown a high incidence of thromboses proximal to the common femoral vein during pregnancy, and these would not be visualized using compressive ultrasonography, which traditionally can only visualize thromboses distal to the femoral vein.


Case Report: A 38-year-old female, 25-weeks primiparous, presented to the emergency department with a three-day history of left lower extremity swelling. Point-of-care three-point compression testing was used to evaluate for a DVT; however, no thrombus was visualized. Given high clinical suspicion, color and spectral Doppler testing were performed and demonstrated turbulent flow and reduced respiratory variation in the common femoral vein. This prompted further additional testing for a proximal DVT using magnetic resonance venography, which revealed an occlusive left external iliac thrombus. The patient was subsequently started on daily subcutaneous enoxaparin and discharged home with close follow-up.


Conclusion: Emergency physicians play a critical role in evaluations for the presence of DVT/VTE, particularly in pregnant patients. We endorse the use of POCUS with three-point compression testing, as well as color and spectral Doppler imaging, to help identify proximal DVTs in this patient population. This case report can aid physicians in the diagnosis of this pathological condition that if left untreated can have severe consequences.

Rectus Sheath Blocks for Umbilical Hernia Reductions in the Emergency Department: A Case Series

Introduction: Rectus sheath blocks have been used for decades in the operating room for analgesia following umbilical surgical procedures. We present the first reported case series of a rectus sheath block used in the emergency department (ED) for the reduction of an umbilical hernia.

Case Series: Four patients presented to the ED for painful, non-reducible umbilical hernias. An ultrasound-guided bilateral rectus sheath block was used in all four patients with complete pain relief and an easy hernia reduction.

Conclusion: Rectus sheath blocks are an excellent addition to a multimodal analgesic regimen in periumbilical pain and painful procedures. This block is easy to perform and implement for pain control in umbilical hernias in an ED setting.

  • 1 supplemental video

Angioedema Secondary to Tenecteplase Use in a Patient with Acute Ischemic Stroke: A Case Report

Introduction: Angioedema, a swelling of the subcutaneous or submucosal layers of the skin or gastrointestinal tract, is a potential complication to thrombolytic therapy in the treatment of acute ischemic strokes. In these cases, angioedema develops due to increased levels of bradykinin as a result of the activation of the fibrinolytic pathway and contact activation system. Angioedema can involve the tongue, larynx, and vocal cords, leading to occlusion of the airway and death due to asphyxiation. It is vital for the emergency physician to know that this complication can occur to ensure appropriate monitoring for development of angioedema.

Case Report: We report the case of a 65-year-old Black man who presented with signs of an acute ischemic stroke and was treated with tenecteplase. The patient’s stroke symptoms mostly resolved within 90 minutes; however, he developed swelling of his right upper lip consistent with angioedema. The patient was treated with steroids and antihistamines. He was closely monitored and did not require airway intervention. The angioedema was almost fully resolved by the following day.

Conclusion: Angioedema is a known complication of thrombolytic therapy for acute ischemic stroke. Risk factors for alteplase-associated angioedema include use of angiotensin-converting enzyme inhibitors, female gender, diabetes, and infarcts of the insula and frontal cortex. As hospital systems switch from alteplase to tenecteplase for the treatment of acute ischemic strokes for reasons of cost and ease of administration, it is important to recognize that angioedema is also a potential complication of tenecteplase.

Tension Pyopneumothorax in an Immunocompetent Adolescent: A Case Report

Introduction: Tension pyopneumothorax is a rare, life-threatening condition that occurs as a complication of intrathoracic infection or bronchopleural fistula. In the few cases reported in the literature, the patients typically have multiple comorbidities, underlying lung disease, and/or an immunocompromised state.

Case Report: This case describes tension pyopneumothorax in a previously healthy adolescent male with no existing risk factors for this disease. After emergent stabilization and admission, surgical exploration of the chest revealed no fistulas or pleural defects. Extensive workup did not show any underlying risk factors for development of this condition.

Conclusion: This case of pyopneumothorax with progression to tension physiology is exceedingly rare. Uniquely, the patient had no underlying medical or anatomical predisposition to developing this condition. The case also emphasizes pediatric patients’ capacity to compensate in the setting of critical illness.

Community-Acquired Candida albicans Empyema Leading to Tension Physiology: A Case Report

Introduction: A tension empyema, in which purulent material accumulates in the chest cavity and leads to cardiopulmonary dysfunction, is a rare complication of empyemas. Moreover, fungal empyemas that grow Candida albicans and cause tension physiology have not yet been previously described.

Case Report: In this report, we present an immunocompetent 30-year-old male who presented to the emergency department with worsening shortness of breath and was found to have a left-sided fungal empyema causing tension physiology. Left chest thoracostomy yielded approximately 4 liters of purulent fluid. Pleural cultures eventually grew C albicans, and after antifungal therapy, surgical decortication of the lung, and a prolonged intensive care unit stay, the patient was discharged home in stable condition.

Conclusion: While mortality from C albicans empyemas that cause respiratory compromise is exceedingly high, our case highlights that aggressive management with rapid chest thoracostomy and antifungal therapy can lead to a favorable outcome.

“K Cramps,” Recurrent Abdominal Pain in a Patient with Chronic Ketamine Use: A Case Report

Introduction: Medical and nonmedical ketamine use is increasing in the United States. This will likely lead to an increase in emergency department (ED) visits in individuals experiencing associated side effects. Physicians will need to be able to effectively recognize and manage ketamine-related complications.

Case Report: A 31-year-old male with a three-year history of inhalational, intramuscular, and intravenous nonmedical ketamine use presented to the ED twice within a week with symptoms of severe atraumatic back pain, abdominal pain, and dyspepsia. A comprehensive workup, including advanced imaging, was unrevealing for identifiable causes, and the patient was discharged with instructions for primary care follow-up for further evaluation. The patient used information shared on Reddit, an online forum and social network, to identify that the cause of his pain was related to chronic ketamine use. Subsequently, upon discontinuation of ketamine, the pain improved in 24 hours. The patient self-navigated to addiction treatment.

Conclusion: Emergency physicians should consider sequelae of chronic ketamine use as a possible cause for gastrointestinal and urologic symptoms in the ED. In addition to thorough examination and assessment for other acute medical problems, patients should be offered education, symptomatic treatment, and linkage to harm reduction and substance use disorder treatment services.

Pupil Unleashed: Unraveling the Enigma of an Unusual Traumatic Head Injury: A Case Report

Introduction: Isolated oculomotor nerve palsy after mild traumatic brain injury is unusual and prognostically significant due to unclear mechanisms and recovery challenges. We present a case of isolated oculomotor nerve palsy following minor head trauma, shedding light on this unusual occurrence.

Case Report: A 24-year-old male experienced severe vision loss and right-sided oculomotor nerve palsy after a motor vehicle collision. Initial imaging showed a hemorrhagic focus in the left posterior fossa and a contusion in the corpus callosum, yet no direct cause for the nerve palsy was found. Partial recovery was observed after 12 months.

Conclusion: This case underscores the importance of maintaining a heightened suspicion for occult intracranial findings, especially when the initial non-contrast computed tomography was inconclusive. Timely clinical assessment and appropriate radiological investigations by emergency physicians are crucial for improving the prognosis.

Spontaneous Hemothorax from Pulmonary Intralobar Sequestration: A Case Report

Introduction: Pulmonary sequestration is a rarely reported phenomenon where aberrant lung tissue exists independently from the rest of the tracheobronchial network. Complications may include hemothorax; however, there is a paucity of descriptions of this condition in the literature.

Case Report: We describe a case of a pulmonary intralobar sequestration resulting in atraumatic tension hemothorax. A 73-year-old woman presented to our facility in extremis and with complaints of acute-onset flank pain. Her evaluation was notable for a large pulmonary sequestration with a presumed, moderate-sized effusion; however, initial review did not reveal an obvious underlying cause for her symptoms. Shortly after her arrival to the emergency department (ED) she experienced a cardiac arrest. On secondary review of her computed tomographic angiography, it was determined that what was previously thought to be a pleural effusion was a large hemothorax. Following this finding, a finger thoracostomy was performed, which resulted in the immediate evacuation of hemothorax. The thoracostomy was then converted into an ED thoracotomy to assess for active hemorrhage with brief return of spontaneous circulation. Prior to proceeding with emergent operative intervention, the patient’s spouse requested that all further resuscitative efforts cease, and the patient was allowed to expire. In a review of the case, it was determined that the patient suffered from cardiac arrest due to a spontaneous hemothorax secondary to a large intralobar pulmonary sequestration.

Conclusion: Pulmonary intralobar sequestration can result in spontaneous hemorrhage with fatal results. Early and correct interpretation of imaging and surgical intervention are crucial in ED management.

Median Nerve Measurement and Steroid Injection for Carpal Tunnel Syndrome: A Case Report

Introduction: Carpal tunnel syndrome is an entrapment neuropathy that affects 3% of adults in the United States. The current techniques used for diagnosis have limited specificity/sensitivity, and the techniques used for treatment have limited efficacy.

Case Report: A 34-year-old female presented to the emergency department with two months of worsening painful paresthesias in her right thenar eminence. Ultrasound was performed showing a median nerve area of 20.4 square millimeters within the carpal tunnel. Median nerve block was performed within the carpal tunnel causing complete resolution of her pain.

Conclusion: Emergency physicians skilled in point-of-care ultrasound and needle-guided procedures can diagnose and treat carpel tunnel syndrome.