OMIA:000781-9807 : Patent urachus in Ceratotherium simum

In other species: domestic cat , sheep , mountain zebra , dog

Categories: Embryo phene

Links to MONDO diseases: No links.

Mendelian trait/disorder: unknown

Considered a defect: yes

Cross-species summary: The urachus is a canal present in the foetus, connecting the bladder with the allantois via the navel. It normally disappears after birth. A patent urachus is one which persists after birth, allowing urine to drip out of the bladder through the umbilicus.


2001 Langan, J., Ramsay, E., Schumacher, J., Chism, T., Adair, S. :
Diagnosis and management of a patent urachus in a white rhinoceros calf (Ceratotherium simum simum) Journal of Zoo & Wildlife Medicine 32:118-122, 2001.

Edit History

  • Created by Frank Nicholas on 06 Sep 2005