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Classic, ALK-DUSp22-, TP63- primary cutaneous anaplastic large cell lymphoma. (A) In the scapular region, adjacent tumoral erythematous nodules resembling dermatofibrosarcoma protuberans. (B,C) Hematoxylin and eosin stain demonstrating a circumscribed infiltrate formed of organized huge lymphoid cells with missing or modest epidermotropism in the dermis. (D,E) CD30 stain showing positivity in the membrane and Golgi of the tumoral large cells. Reproduced with permission from [145].
