Twisted fate of bladder catheters.

Catheter knotting is a rare complication of bladder catheterisation. Retention of catheter parts resulting in calculus formation is even rarer. We report a case of a vesical calculus formed over a broken and retained supra-pubic catheter which to the best of our knowledge has yet to be reported, along with three other cases of bladder catheter knotting.

Mesocolic hernia: a rare cause of intestinal obstruction in childhood.

Mesocolic hernia is a rare cause of intestinal obstruction in children. The diagnosis involves a high index of suspicion and prompt intervention to prevent strangulation and a high morbidity. The embryological basis of the condition is of paramount importance to assist the eventual surgical correction.

Persistent cholecystohepatic ducts.

Anatomical variations in the biliary tract are reported with sufficient frequency to be of concern to the operating surgeon. They are often not identified prior to surgery. Drainage of both intrahepatic ducts into the gallbladder was identified in a case as the gallbladder was removed.