Endoscopic rectal ultrasound and elastosonography are useful in flow chart for the diagnosis of deep pelvic endometriosis with rectal involvement

G. Mezzi, Gianni Mezzi, Mezzi G, Stefano Ferrari, Ferrari S, Paolo Giorgio Arcidiacono, Francesca Puppo, Di Puppo F, Francesca DI Puppo, Massimo Candiani, Pier Alberto Testoni, Testoni PA
Journal of Obstetrics and Gynaecology Research · 2010 · vol. 37(6) , pp. 586–590 · doi:10.1111/j.1447-0756.2010.01413.x · PMID:21159047 · W1514845595
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Endoscopic ultrasound and elastosonography effectively detected deep pelvic endometriosis with rectal involvement, showing hypoechoic masses with fourth-layer invasion, correlating with surgical findings.

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Abstract

Abstract Aim: Endometriosis is defined by the presence of endometrial glands and stroma outside the uterus. The disease causes pelvic pain, dysmenorrhea, dyspareunia, dyschezia and urinary symptoms. The aim of this study was to assess the usefulness of endoscopic ultrasound (EUS) and elastosonography for detecting rectosigmoid endometriosis and to compare the findings, in selected and symptomatic patients, with surgical specimens in order to select the best surgical strategy. Material & Methods: Sixty‐three consecutive patients (mean age 34.2; range 25–50 years) with diagnosis of endometriosis were referred for rectal endosonography to evaluate the rectal involvement. Patients complained of abdominal pain, rectal bleeding, constipation and dysmenorrhea. Sub‐stenosis of the rectosigmoid lumen was found endoscopically in one patient (1.5%), bulging in 21 (33.3%), mucosal hyperemia or edema in one (1.5%), and no lesions in 39 patients (61.9%); no abdominal masses or obstruction were reported. Each woman completed a self‐administered 100‐point questionnaire to evaluate endometriosis‐related pain (intensity of symptoms: 0 = absent, 100 = unbearable). After clinical imaging evaluation, 10 symptomatic patients (mean age 32.2; range 26–45 years) were evaluated for surgery. Results: EUS detected endometriotic lesions in all patients as a hypoechoic mass, poorly vascularized with irregular, undefined margins. In cases where the rectosigmoid wall was involved, there was invasion of the fourth layer. All patients who were operated had histologic findings of endometriotic lesions involving the rectal wall, as indicated by EUS. Conclusion: EUS and elastosonography offers a non‐invasive and sensitive technique to better define the endometriotic infiltration in the rectosigmoid wall.

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Condition tags

endometriosisdysmenorrheadyspareunia

MeSH descriptors

Elasticity Imaging Techniques Endometriosis Endosonography Pelvis Proctoscopy Rectal Diseases Rectum Adult Colonic Diseases Colonic Diseases Endometriosis Female Humans Middle Aged Pelvis Proctoscopy Rectal Diseases Rectum Uterine Diseases Uterine Diseases

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