A Case of Metastatic Renal Cell Carcinoma of the Gallbladder resected Concurrently with Primary Lesion

Noriaki Kyogoku, Syunichi Okushiba, Syuji Kitashiro, Yo Kawarada, Hiroyuki Kato, Yuma Ebihara, Noriko Nakamiya, Rintaro Machino¹⁾, Hidetoshi Sato²⁾ and Hiroyuki Kato

Department of Digesting Surgery, Department of Urology¹⁾ and Department of Pathology²⁾, Sapporo Tonan Hospital, KKR Medial Center

A 63-year-old man with a left renal tumor and a gallbladder tumor found in abdominal ultrasonography, and diagnosed preoperatively with double cancer. Underwent left nephrectomy and expanded cholecystectomy. The solid gallbladder tumor was pendunculated. Histopathologically, both the renal and gallbladder tumors had a morphology of clear cell carcinoma, diagnosed primary renal cell carcinoma and metastatic renal cell carcinoma of the gallbladder. Interferon was adoministrated in postoperative therapy and the man was discharged on postoperative day 30. To our knowledge, metastatic renal cell carcinoma of the gallbladder is rare, with only 35 reports, including our case, in the Japanese and Euroamerican literature. These literature said that the pathological examination was absolutely imperative to make a definite diagnosis. It means these cases are impossible to diagnose preoperatively as metastasis or primary gallbladder tumor. To prevent the residual carcinoma, we should do radical surgery for primaly gallbladder carcinoma.

Key words
renal cell carcinoma, gallbladder, metastasis

Reprint requests
Noriaki Kyogoku Department of Surgical Oncology, Hokkaido University
Kita15-jou, Nisi7-chome, Kita-ku, Sapporo, 060-8638 JAPAN

Accepted
October 28, 2009

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