Journal of cutaneous medicine and surgery
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Case Reports
Primary cutaneous folliculotropic and lymphohistiocytic anaplastic large cell lymphoma.
Primary cutaneous anaplastic large cell lymphoma (PC-ALCL) is a T-cell lymphoma that presents in the skin and consists of CD30+ anaplastic large lymphocytes with abundant cytoplasm and pleomorphic nuclei. In addition to the classic variant, several other histologic patterns of ALCL have been identified, among them the lymphohistiocytic variant. ⋯ This case shows that PC-ALCL may present with different histologic features, including a follicular variant, that may mimic both benign and malignant conditions.