Case report: Primary pure squamous cell carcinoma of the gallbladder.

[carcinoma of the gallbladder]

Squamous cell carcinoma of the gallbladder is rare , accounting for only 0 .5 -12 .7 % of all malignant gallbladder tumors . Tumor progression is rapid but silent and therefore usually discovered at an advanced stage , hence its poor prognosis . We report the observation of a 69 -year -old woman with known cholelithiasis , admitted for biliary colic . CT scan highlighted a thick -walled gallbladder harboring a tumor invading segments IV and V of the liver . The patient underwent cholecystectomy associated with bisegmental hepatic resection . Pathology showed a well-differentiated , keratinizing squamous cell carcinoma , infiltrating the entire gallbladder wall and the adjacent hepatic parenchyma .