Cystic duct metastasis from renal cell carcinoma

Hideaki Koga, Kei Yane, Hiroyuki Maguchi, Kuniyuki Takahashi, Akio Katanuma, Toshifumi Kin, Yoshiyasu Ambo, Yuko Omori, Toshiya Shinohara

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We herein report a 69-year-old man who underwent right nephrectomy 1 year previously to remove renal cell carcinoma (RCC). On our examinations, contrast-enhanced computed tomography revealed a tumor with intensive early enhancement near the cystic duct of the gallbladder. Endoscopic ultrasonography showed a low echoic mass in the cystic duct. We diagnosed the patient’s condition as cystic duct metastasis from RCC and performed open cholecystectomy. Histopathology indicated a metastatic tumor of clear cell RCC in the cystic duct wall. In patients with a medical history of RCC, hypervascular lesions suggest the possibility of metastasis. Therefore, detailed imaging examinations should be performed.

Original languageEnglish
Pages (from-to)213-218
Number of pages6
JournalInternal Medicine
Issue number2
Publication statusPublished - 2018


  • Cystic duct
  • EUS
  • Gallbladder
  • Imaging findings
  • Metastasis
  • Renal cell carcinoma


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