Department of Maternal Fetal Medicine, Osaka Medical Center and Research Institute for Maternal and Child Health, Osaka, Japan.
Fetal Diagn Ther. 2013;34(1):63-5. doi: 10.1159/000348773. Epub 2013 Mar 29.
Congenital megalourethra is a rare urogenital malformation that is usually associated with lower urinary tract obstruction. In association with hypoplasia or deficiency of the corpus spongiosa and/or corpus cavernosum, a cystic dilatation of penile urethra is generally observed. We present a case of congenital megalourethra diagnosed by fetoscopy and ultrasonography at 17 weeks of gestation. Fetoscopic investigation demonstrated a balloon dilatation of the penis with a complete obstruction of the urethral meatus, which could distinguish a fusiform type congenital megalourethra from other disorders. Autopsy subsequent to the termination of pregnancy revealed a complete deficit of both corpus spongiosa and corpus cavernosum.
先天性巨尿道是一种罕见的泌尿生殖系统畸形，通常与下尿路梗阻有关。在伴有海绵体和（或）海绵体发育不良或缺失的情况下，通常观察到阴茎尿道的囊性扩张。我们报告了一例在 17 周妊娠时通过胎儿镜和超声诊断的先天性巨尿道病例。胎儿镜检查显示阴茎球囊扩张，尿道口完全梗阻，可将梭形先天性巨尿道与其他疾病区分开来。妊娠终止后的尸检显示海绵体和海绵体完全缺失。
