AN UNUSUAL EXTRAUTERINE VARIANT OF ADENOSARCOMA WITH MULTIPLE RECURRENCES OVER 16 YEARS

An unusual extrauterine (pelvic) variant of adenosarcoma is presented. A benign-appearing epithelium resembling fallopian tube epithelium is integrally mixed with malignant stroma that in all areas sampled is l ow-grade leiomyosarcoma. The tumor has behaved as a low-grade malignan cy with four local recurrences over a 16-year period. Extrauterine ade nosarcomas have rarely been reported in the literature; and one in whi ch the stromal component is histologically all of smooth muscle differ entiation is more unusual. (C) 1994 Academic Press, Inc.