Dermatology Online Journal

Unknown: A middle-aged woman with a solitary targetoid lesion on her shin
Farideh Jowkar¹, Nasrin Saki², Fatemeh Sari Aslani³, Dorna Motevalli⁴, Mohammad Reza Saki⁴
Dermatology Online Journal 18 (7): 11

1. Skin Research Center, Dermatology Department, Shiraz University of Medical Sciences, Shiraz, Iran
2. Corresponding Author, Skin Research Center, Dermatology Department, Shiraz University of Medical Sciences, Shiraz, Iran
3. Pathology Department, Shiraz University of Medical Sciences, Shiraz, Iran
4. Students Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

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Case synopsis

Figure 1	Figure 2

A 42-year-old woman presented to the dermatological clinic of Shahid-Faghihi Hospital with an asymptomatic solitary targetoid patch on her shin of 1 month duration. On clinical examination, the lesion was solitary, targetoid, well-circumscribed, and 1cm in diameter, with no other skin changes such as scaling or atrophy. The macule was surrounded by a thin, pale area and an ecchymotic ring (Figure 1). The patient was otherwise completely normal. There was no family history of similar problems in her family.

Histopathology findings

Figure 3	Figure 4

On histological examination serial sections show intact epidermis with vascular proliferation in the papillary dermis. Vascular channels are irregular, thin walled, and dilated. They were lined by prominent endothelial cells having plumped protruding nuclei and scanty cytoplasm. There is a mild extravasation of red blood cells and mild lymphocytic infiltrate around blood vessels in the upper and mid dermis (Figures 2, 3, and 4).

What is your diagnosis?

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