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Molluscum contagiosum infection with features of primary cutaneous anaplastic large cell lymphoma

  • Author(s): Shalabi, Doaa;
  • Ringe, John;
  • Lee, Jason B;
  • Nikbakht, Neda
  • et al.
Abstract

CD30+ T cell pseudolymphomas (CD30+ PSL) are a group of benign inflammatory cutaneous disorders that can develop in settings of viral infections or drug reactions. Owing to their histological similarities to malignant lymphomas, these benign infiltrates are occasionally misdiagnosed as malignant, causing significant concerns for patients and physicians. Herein, we report a patient with CD30+ PSL associated with molluscum contagiosum whose initial biopsy revealed atypical large CD30-expressing cells, leading to a misdiagnosis of primary cutaneous anaplastic large cell lymphoma and referral to our cutaneous lymphoma clinic. We report this case to demonstrate that reactive CD30+ infiltrate associated with molluscum contagiosum can be mistaken for T-cell lymphomas and patients should be reassured in these cases.

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