ENDOMETRIAL STROMAL SARCOMA WITH RHABDOID PHENOTYPE AND SEX CORD-LIKEAREAS

An unusual endometrial stomal sarcoma is described in a 50-year-old pa tient. The distinctive feature of this case is the focal occurrence of sex cord-like pattern and rhabdoid appearance of tumor cells. Rhabdoi d cells have an eosinophilic cytoplasm and a vesicular nucleus with a prominent nucleolus. Immunohistochemistry showed positive cytoplasmic staining for both cytokeratin and vimentin, and ultrastructural examin ation identified tumor cells with abundant cytoplasmic intermediate fi laments. To our knowledge, only one case of endometrial stromal sarcom a with this unusual morphological association has been reported in the literature.