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Radiology, Vol 207, 173-181, Copyright © 1998 by Radiological Society of North America

ARTICLES

Transrectal US in male infertility: spectrum of findings and role in patient care

E Kuligowska and HM Fenlon
Department of Radiology, Boston Medical Center, Boston University School of Medicine, MA 02118, USA.

PURPOSE: To determine the findings at transrectal ultrasound (US) in infertile men with low-volume azoospermia and to evaluate its role in patient care. MATERIALS AND METHODS: Transrectal US was performed on 276 infertile men with a mean age of 34 years (range, 24-52 years) who had documented low ejaculate volumes and azoospermia. RESULTS: Of the 276 men, 70 (25.4%) had no anatomic abnormalities. In the remaining patients, abnormalities included congenital bilateral absence of the vas deferens in 94 (34.1%) patients; bilateral occlusion of the vas deferens, seminal vesicles, and ejaculatory ducts by calcification or fibrosis in 43 (15.6%) patients; unilateral absence of the vas deferens in 31 (11.2%) patients; obstructing cysts of the seminal vesicles, vas deferens, ejaculatory ducts, or prostate in 26 (9.4%) patients; and ductal obstruction secondary to calculi in 12 (4.4%) patients. CONCLUSION: Transrectal US is a safe and accurate method for evaluating the distal male reproductive tract that helps identify patients with potentially correctable causes of infertility.


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