persistent cloaca


per·sis·tent clo·a·ca

a condition in which the urorectal fold has failed to divide the cloaca into rectal and urogenital portions. Synonym(s): sinus urogenitalis, urogenital sinus (2)

per·sis·tent clo·a·ca

(pĕr-sis'tĕnt klō-ā'kă) A condition in which the urorectal septum has failed to divide the cloaca of the embryo into rectal and urogenital portions.