Gastrointest Endosc. 2006 Feb;63(2):331-5.

Role of EUS and EUS-guided FNA in the diagnosis of symptomatic rectosigmoid endometriosis.

Pishvaian AC¹, Ahlawat SK, Garvin D, Haddad NG.

Author information

1: Division of Gastroenterology and Department of Pathology, Georgetown University Hospital, Washington DC, USA.

Abstract

BACKGROUND:

Rectosigmoid endometriosis is an underrecognized cause of GI symptoms in women. Pelvic magnetic resonance imaging and CT have a low sensitivity in making this diagnosis. The role of EUS and EUS-guided FNA (EUS-FNA) in the diagnosis of rectosigmoid endometriosis in symptomatic patients is not well studied.

METHODS:

A review of medical records identified 5 women who were diagnosed with rectosigmoid endometriosis by EUS and EUS-FNA over a period of 1 year.

OBSERVATIONS:

Five women with nonspecific GI complaints underwent EUS examination of a rectosigmoid subepithelial mass found on colonoscopy. EUS revealed a hypoechoic lesion infiltrating the muscularis propria and the serosa of the rectal wall, and extending outside the rectal wall, findings consistent with rectosigmoid endometriosis. This diagnosis was confirmed by EUS-FNA, surgical exploration, and/or the patient's clinical course.