A Case of Gallbladder Metastasis from Renal Cell Carcinoma

Abstract

We report a case of gallbladder metastasis from renal cell carcinoma. A 72-year-old man who was being followed up for liver cirrhosis had undergone left nephrectomy for renal cell carcinoma 2 years ago. A gallbladder polyp detected on abdominal ultrasound 1 year before the nephrectomy was found to have enlarged to 10 mm over the follow-up period. The patient underwent laparoscopic cholecystectomy to remove the gallbladder tumor. Histological examination revealed clear cell carcinoma that had developed under the mucosal epithelial layer of the gallbladder. The gallbladder tumor was diagnosed as metastasis from the renal cell carcinoma, which is rare.