Sarcomatoid Carcinoma of the Ampulla of Vater: A Case Report.

Sarcomatoid carcinomas are rare malignant tumors comprising a mixture of malignant epithelial and mesenchymal cells. Sarcomatoid carcinomas are found at various sites of the body, including the lungs and the hepatobiliary, urinary, and digestive tracts. However, sarcomatoid carcinoma of the ampulla of Vater (AoV) is rare with only a few reported cases. Here, we present the case of a 60-year-old woman with sarcomatoid carcinoma of the AoV, diagnosed using CT and MRI.