The prognosis for advanced carcinoma of the gallbladder is grave, but a reappraisal of the histologic and gross presentation of the disease may uncover a group of patients with significantly better prognosis. During any cholecystedtomy, the gallbladder should be opened by the surgeon and frozen sections should be obtained for suspicious lesions. Carcinoma in situ appears to be well treated by cholecstectomy alone. Microinvasive carcinomas of the gallbladder require wider surgical excision