Sarcomatoid carcinomas (carcinosarcomas) of the gastrointestinal tract: a review.

Abstract

This review discusses sarcomatoid carcinomas of the gastrointestinal tract, rare malignant neoplasms that demonstrate both epithelial and mesenchymal differentiation. The clinical, histological, immunohistochemical, and ultrastructural features are described. Practical problems in the differential diagnosis of these tumors are also discussed.