patent omphalomesenteric duct

• 卵黄管未闭

patent omphalomesenteric duct的用法和样例：

例句

1. If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.
   如果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性的。