Goldstein M, Schlossberg S
Department of Surgery, New York Hospital-Cornell Medical Center, New York.
J Urol. 1988 Jul;140(1):85-6. doi: 10.1016/s0022-5347(17)41493-5.
The absence of semen fructose and low ejaculate volume in men with congenital absence of the vas deferens have been attributed to an associated agenesis of the seminal vesicles. Because vasography and retrograde seminal vesiculography cannot be performed in these men, this association has never been confirmed reliably. Therefore, we performed computerized tomographic scans of the seminal vesicles on 26 men with absence of the vas deferens. We found seminal vesicles bilaterally in 12 of these men, unilateral hypoplasia or absence in 8 and bilateral hypoplasia or absence in 6. Four men with normal seminal vesicles and 1 with unilateral hypoplasia underwent exploration in an attempt to find reconstructable vasa. We failed to identify a vas deferens in any of these men. These observations suggest that negative semen fructose and low ejaculate volume in men with absence of the vas deferens may be owing to agenesis or obstruction of the ejaculatory ducts rather than absent seminal vesicles.
先天性输精管缺如男性精液中缺乏果糖且射精量少，一直被认为与精囊的相关发育不全有关。由于这些男性无法进行输精管造影和逆行精囊造影，这种关联从未得到可靠证实。因此，我们对26例输精管缺如的男性进行了精囊的计算机断层扫描。我们发现其中12例双侧有精囊，8例单侧发育不全或缺如，6例双侧发育不全或缺如。4例精囊正常和1例单侧发育不全的男性接受了探查，试图找到可重建的输精管。我们在这些男性中均未发现输精管。这些观察结果表明，输精管缺如男性精液果糖阴性和射精量少可能是由于射精管发育不全或梗阻，而非精囊缺如。
