Abstract
A 67-year-old woman was admitted to the center because of choking sensation in the throat at eating which occurred since June, 1990. X-ray examination of the esophagus revealed a funnel type stenosis but no irregular mucous membrane was observed. Esophagoscopy revealed a whole-circumference stenosis 37 cm distant from the incisor line. Biopsy disclosed no possible malignancy. On August 13 the lower part of the esophagus and cardiac part were resected. The tumor was located in the region Ei, about 3 cm in diameter, whole-circumferentially growed like a submucosal tumor, and had a IIc-like excavation in the oral-side end. Histopathologically the carcinoma was solid, and mainly comprized of basaloid cells. Partially, there were cancer cell nests showing the squamous cell differentiation which were stained acidophillically, and some parts revealing pseudoduct-like structure. From these results, a diagnosis of basaloid carcinoma was made. As the pathological classification of carcinomas of the esophagus was revised in 1990, the definition for this case may be somewhat different from the conventional one. Setting it aside, some discussion is presented by reviewing domestic cases of basaloid carcinoma seen in a part one decade.
