A CASE OF SQUAMOUS CELL CARCINOMA OF THE STOMACH

Abstract

Adenocarcinoma is the most common histological type of gastric carcinoma, and on the other hand squamous cell carcinoma is very rare. A case of primary squamous cell carcinoma of the stomach was reported in this paper. A 63-year-old man was admitted to our hospital, complaining of back pain. He was diagnosed as gastric carcinoma, and subtotal gastrectmy was performed. A Borrmann II type gastric carcinoma, measuring 9.0×8.0cm, was confirmed on the lesser carvature in the body of the stomach, extending to the antrum. Histologically, the carcinoma cosisted mostly of well differentiated squamous cell carcinoma, and partly of well differentiated tubular adenocarcinoma. The lesion was completely separate from the esophageal mucosa. Neither heterotopic squamous epithelium nor island of benign squamous metaplastic epithelium could be demonstrated in the adjacent mucosa of the stomach. Additionally, there were some portions, concurrently lined partly by glandular carcinoma and partly epidermoid carcinoma in the same carcinomatous gland. We supposed that these histological pictures showed abrupt transition from adenocarcinoma to squamous cell carcinoma.