A case of metastatic gallbladder tumor of renal cell cancer with a unique feature followed by ultrasonography

• Published in: Tando Vol. 26; no. 5; pp. 699 - 704
• Main Authors: Shigetomo, Miki, Morita, Toshihiro, Kikuyama, Masataka, Kurokami, Takafumi, Kimura, Yuto, Maruno, Takahisa, Kayahara, Takahisa, Matsumura, Kazuyoshi, Suzuki, Makoto
• Format: Journal Article
• Language: Japanese
• Published: Japan Biliary Association 2012; 一般社団法人 日本胆道学会
• Subjects: metastic gallbradder tumor; renal cell carcinoma; 腎細胞癌; 転移性胆嚢腫瘍
• ISSN: 0914-0077; 1883-6879
• DOI: 10.11210/tando.26.699

A 74-year-old female with a past history of right nephrectomy due to renal cell cancer at 67-year-old was admitted for evaluation of an oval polyp at the gallbladder neck with 15 mm diameter in size, which had been recognized as a 7 mm hemispheric lesion on ultrasonography 7 months before admission. Abdominal enhanced CT revealed a strongly-enhanced lesion and endoscopic ultrasonography showed a 20 mm-diameter low echoic polypoid mass with a high echoic layer on its surface. We considered it as a metastatic gallbladder tumor of renal cell cancer and performed cholecystectomy. Histopathologically, the tumor consisted of clear cells similar to the previously operated renal cell cancer and existed in the mucosal layer without invasion into the muscular layer. The gallbladder lesion was diagnosed as a metastasis of renal cell cancer.