Unusual fistula demonstrating the need for an early cholecystectomy.

A 79-year-old man developed a spontaneous cholecystocutaneous fistula 12 months after an initial episode of acute cholecystitis. A laparoscopic cholecystectomy procedure was twice abandoned due to extensive adhesions and active disease, limiting safe dissection of Calot's triangle. Abdominal collections formed and a spontaneous cholecystocutaneous fistula developed. Imaging revealed an 11 cm calculus and erosion of the fundus of the gall bladder through the sheath. Definitive management was achieved with a laparoscopic assisted open cholecystectomy. © BMJ Publishing Group Limited 2020. No commercial re-use. See rights and permissions. Published by BMJ.