[Clear-cell sarcoma with melanin].

Abstract

Melanin was proved in the tumorous cells in a 62-year-old man who had a malignant tumor with the structure of clear cell sarcoma of tendons on the sole of the foot. Electronoptic examination confirmed the presence of numerous melanosomas and their complexes. Although the tumor may be regarded as a special variant of melanoblastoma from clear cells (7), the authors give reasons admitting an independent position within the clear cell sarcoma of tendons.