Clinical, radiological and pathological findings in 31 patients with x
anthogranulomatous cholecystitis have been reviewed. The spectrum of p
resentation was similar to that of cholelithiasis but fewer patients h
ad biliary colic (17 per cent) and there were more complications (32 p
er cent). Four patients had a biliary fistula and four a perforated ga
llbladder with abscess formation. Patients characteristically had gall
stones. Appearances often mimicked carcinoma of the gallbladder at ult
rasonography and/or laparotomy, with xanthogranulomatous tissue extend
ing to adjacent structures. Xanthogranulomatous cholecystitis and carc
inoma of the gallbladder coexisted in three patients. The possibility
should be considered that an 'inoperable tumour' of the gallbladder ma
y in fact be xanthogranulomatous cholecystitis, a benign condition tha
t frozen-section biopsy may confirm.