Small Cell Carcinoma of the Gallbladder: A Case Report

Small cell carcinoma of the gallbladder is a type of neuroendocrine tumor and very rare. We report ultrasound, CT and MR findings of a small cell carcinoma of the gallbladder that was confirmed by pathology. Small cell carcinoma of the gallbladder was seen as a well-defined mass with peripheral rim enhancement in the gallbladder. In spite of the large size of the mass, direct and extensive invasion of the liver was not detected. However, there were many metastatic lymph nodes.