Small bowel (small intestine)
Other malignancies
Müllerian adenosarcoma

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 23 February 2018, last major update August 2012

Copyright: (c) 2003-2018,, Inc.

PubMed Search: Müllerian adenosarcoma small bowel

Cite this page: Gulwani, H. Müllerian adenosarcoma. website. Accessed October 19th, 2018.
Definition / general
  • Tumor with benign glandular component and malignan stromal component
  • Rare in small bowel; associated with endometriosis and unopposed estrogen therapy (Am J Surg Pathol 2000;24:513)
Microscopic (histologic) description
  • Proliferation of endometrioid glands and stroma with stromal condensation around glands, mild to moderate cytologic atypia of stroma and stromal mitoses
  • May have stromal pseudodecidualization, focal epithelial atypia
  • No definite malignant epithelial features