A Case of Clear-Cell Sarcoma

概要

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In 1965, Enzinger proposed to classify a certain type of malignant tumor arising in tendons and aponeuroses as an additional tumor entity. The tumor, which was provisionally named clear-cell sarcoma of tendons and aponeuroses, has a uniform and distinctive clinical and morphological pattern, which distinguishes it from other groups of tenosynovial tumors.This brief paper presents a 40-year-old Japanese male with the clear-cell sarcoma. This tumor arose in the tendon of the right vastus lateralis, and appeared as a firm circumscribed lump of grayish white tissue. Microscopically, it was composed of polygonal and spindle cells in lobules separated by fibrous trabeculae of varying thickness. The cells characteris-tically had clear cytoplasm and distinctive nuclei of large basophilic nucleoli and prominent nuclear membrane.
西日本整形・災害外科学会の論文