Abstract: The data of 9 patients with epithelioid sarcoma were analyzed retrospectively. The average age of 9 patients was 43.8 years. The lesions were on the upper limb in 6 patients, on the chest in one, on the heel in one, on the shoulder in one. The tumor diameter are less than 1 cm in 4 patients, 1~5 cm in 5 patients. Biopsy revealed epidermal hyperkeratosis and acanthosis, and a large number of epithelial cells in dermis and cellular pleomorphism. The immunohistochemistry results showed that cytokeratin (CK), vimentin (VIM) and epithelial membrane antigen (EMA) were positive in all patients, CD34 positive in 3 patients. All patients were treated with surgical resection and 6 patients received adjuvant radiotherapy and chemotherapy after surgery. Six patients were followed up for 24.8 months and four patients relapsed.

Key words: epithelioid sarcoma, clinical analysis, pathology