A case of epithelioid sarcoma showing unique tissue image.

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A 48-year-old Japanese male patient visited us with a 3-year-history of scattered nodules on the right leg and foot. A nodule 2×1cm in size with a cratral scab and ulcer was observed on the swollen right leg and several small nodules ranged from 1 to 3mm in diameter were scattered on the foot. Biopsy specimen obtained from the nodule of the leg showed the histological features of epithelioid sarcoma. In addition to the positive staining for keratin and vimentin, tumor cells were also positive for CD34 and Factor VIII. Patient received an amputation at the right thigh followed by inguinal lymph node dissection. A metastatic lymph node at the distal portion of the saphenous vein was histologically detected. Patient was alive more than 2 years after the surgical procedure. During this period a small metastatic nodule appeared on the occipital region which was excised surgically.
日本皮膚悪性腫瘍学会の論文