Abstract
A case of primary carcinoma of the cystic duct based on Farrar's criteria is reported. The patient, an 81-yearold woman, was admitted complaining of a mass in the right upper quadrant and diagnosed as having a tumor in the cystic duct. Cholecystecotmy was performed. A tumor measuring 1.3×0.7cm was detected in the cystic duct of the resected gall bladder, however malignancy was not revealed in a frozen section. The removal of regional lymph nodes (No.12) was added because a malignant tumor could not be completely denied. Microscopic examination showed a well-differentiated adenocarcinoma infiltrating the submucosa without metastasis to regional lymph nodes. The diagnostic and therapeutic problems with a tumor in the cystic duct are discussed on the basis of 16 cases reviewed.
