Concerning the abdominal wall and the urinary bladder: Once a year Tina had to go to Dr. Hathaway, her urologist, to have a vesicoabdominal ultrasound made to see if she was still healthy.

A tube extending from the urinary bladder through the abdominal wall and opening externally onto the skin of the abdomen: The vesicoabdominal fistula is an abnormal duct or passage, caused by an injury, disease, or congenital disorder, and connects an abscess, cavity, or a hollow organ to the body surface or to another hollow organ.