Adenosquamous carcinoma and squamous cell carcinoma of the liver: a resected case and three autopsied cases

A resected case and an autopsied case of an adenosquamous carcinoma and two autopsied cases of a squamous cell carcinoma of the liver are presented. With regard to the first case, a 58-year-old male underwent an operation, based on the diagnosis of a hypovascular hepatoma or a cholangioma. The resected material showed a nodular whitish gray tumor at the S4 region which histologically proved to be an adenosquamous carcinoma. In the two autopsied cases, found was a huge, grayish necrotic mass at the right lobe of the liver and a defect of gall-bladder. The tumor, in both cases, proved to be squamous cell carcinoma originating in the liver.