Abstract

Natural killer cell tumors are an uncommon and a heterogeneous group of disorders. These neoplasms are very aggressive, have a poor prognosis and can involve various degrees and forms of skin involvement. In contrast to the other type natural killer cell tumors, the extranasal natural killer cell lymphoma was clinically less aggressive; more localized and had a better outcome. We reported a patient with extranasal NK lymphoma, developed unexpected extensive skin involvement during the course of his disease. A-62 year old male patient admitted with swelling of the testis. Extranasal NK cell lymphoma with bone marrow involvement was diagnosed after orchiectomy and bone marrow biopsy. Extensive skin involvement developed after three cycles of CHOP chemotherapy and he died four months later from diagnosis.

Key Words: Ekstranazal; skin-testis; NK-cell lymphoma.