Abbitt P L, Watson L, Howards S
Department of Radiology, University of Florida College of Medicine, JHMHC, Gainesville 32610-0374.
AJR Am J Roentgenol. 1991 Aug;157(2):337-9. doi: 10.2214/ajr.157.2.1853818.
Endorectal sonography, developed primarily for use in the diagnosis and staging of prostatic carcinoma, should be the first imaging technique used in the evaluation of an infertile man with low semen volume in whom either a hypoplastic or obstructed seminal tract is suspected. Endorectal sonography allows visualization of the seminal vesicles, which are otherwise difficult to examine. We used endorectal sonography to evaluate six young men, five of whom were being evaluated for azoospermia and infertility. One patient had no identifiable seminal vesicle on either side. Four patients had unilateral absence of the seminal vesicles. Of these four, three had a sonographically normal-appearing seminal vesicle on the contralateral side, and the fourth had an obstructed system contralaterally. The sixth patient had a hypoplastic system on the left and an obstructed system on the right. The delineation of an obstructed or agenetic seminal vesicle and seminal tract on endorectal sonography allows decisions to be made regarding treatment and prognosis.
直肠内超声检查主要用于前列腺癌的诊断和分期，对于精液量少且怀疑有精道发育不全或梗阻的不育男性，应将其作为评估时首先使用的成像技术。直肠内超声检查可清晰显示精囊，否则精囊很难检查。我们使用直肠内超声检查评估了6名年轻男性，其中5名因无精子症和不育症接受评估。1例患者双侧均未发现可识别的精囊。4例患者单侧精囊缺如。在这4例中，3例对侧精囊超声检查外观正常，第4例对侧精道梗阻。第6例患者左侧精道发育不全，右侧精道梗阻。直肠内超声检查对梗阻性或先天性精囊及精道的描绘有助于做出关于治疗和预后的决策。
