Primary cutaneous CD30 (Ki-1)-positive non-anaplastic B-cell lymphoma.

Abstract

BACKGROUND The CD30 (Ki-1)-positive lymphoproliferative disorders show a non-epidermotropic infiltrate of large-sized pleomorphic T cells, being extremely rare those that develop from B cells. CLINICAL CASE A 51-year-old white man presented with a 8x10 cm lobulated scalp tumor that had developed during the previous 8 months. Histopathology demonstrated a… (More)

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