A case of incomplete torsion of the gallbladder due to partial torsion of the gallbladder neck

Abstract

A 57-year-old man was admitted to our hospital because of low-grade fever and pain in the right hypochondrium. Abdominal ultrasonographic (US) examination revealed a hyperechoic mass in the body of the gallbladder. The wall of the gallbladder towards the fundus was markedly thickened, while the wall near the gallbladder neck showed no abnormality. Power Doppler and contrast-enhanced CT of the abdomen revealed absence of blood flow in the fundic wall of the gallbladder, however, a contrast-enhanced image of the entire wall was obtained by contrast US, although the blood flow to the fundus was decreased. Torsion of the gallbladder was diagnosed and laparoscopic cholecystectomy was performed. The gallbladder was found to be a wandering gallbladder, Gross I type, and slight counterclockwise torsion was found at the neck of the gallbladder. We report a case of partial torsion of the gallbladder neck, in which the details of the ischemic hemodynamic changes could be observed by contrast-enhanced US.