Clinicopathological spectrum of 19 adenosarcomas of female genital tract, including uncommon clinical associations and immunohistochemical profile, reviewed at a single institution.

Abstract
Background: Adenosarcomas of the female genital tract have been rarely documented as case series from our continent. Materials and Methods: Over a seven-year period, 19 adenosarcomas were critically reviewed. Results: Nineteen tumors occurred in the age range of 21-65 years (mean: 43), in the endometrium (8), endometrium and cervix (4), cervix (4), and ovary (3). Four cases displayed coexisting leiomyomas; two, adenomyosis; two on background endometriosis; and one in post-treated cervix carcinoma. Histopathologically, the tumors were low grade (10; 52.6%) and high grade (9; 47.3%), the latter with sarcomatous overgrowth (SO) (7/9 cases). Dedifferentiation (8, 42.1%) and conspicuous decidualization (2) were noted. Immunohistochemically, the tumors focally expressed CD10 (4/6), smooth muscle actin (SMA) (3/8), desmin (8/11); diffuse vimentin (7/7), and estrogen receptor/progesterone receptor (ER/PR) (2/4). Ki-67 (6 cases) varied 5-20%. Seventeen patients underwent surgery and four received adjuvant treatment (3/4 high-grade tumors). Five tumors recurred (4 high-grade tumors with SO) and one metastasized. Among 11 patients, five were alive with disease (AWD) (mean: 29.4 months) and six, free of disease (FOD) (mean: 15 months), the latter mostly with low-grade type tumors (83.3% cases). Conclusions: Diverse clinicopathological spectrum was noted within adenosarcomas. Low-grade tumors were less aggressive than high-grade ones, with SO. Immunohistochemically, lower CD10 and ER/PR positivity was noted in high-grade tumors. Surgery formed the mainstay of treatment. Adjuvant treatment was offered in high-grade subtypes, including in tumors with SO.
Description
Keywords
Adenosarcoma, mesenchymal tumors of female genital tract, Mullerian adenosarcoma, uterine sarcomas
Citation
Rekhi Bharat, Deodhar Kedar K, Maheshwari Amita, Menon Santosh, Kerkar Rajendra, Bajpai Jyoti, Ghosh Jaya, Gupta Sudeep, Engineer Reena, Shrivastava Shyam K. Clinicopathological spectrum of 19 adenosarcomas of female genital tract, including uncommon clinical associations and immunohistochemical profile, reviewed at a single institution. Indian Journal of Pathology & Microbiology. 2012 Jul-Sept 55(3): 326-332.