Small cell carcinoma of the cystic duct: A case report |
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Authors: | Yukio Sonoda Koji Yamaguchi Eishi Nagai Makoto Nakamuta Tetsuhide Ito Takashi Eguchi Kazuo Chijiiwa Masao Tanaka MD |
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Institution: | (1) Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 812-8582 Fukuoka, Japan;(2) Departments of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan;(3) Anatomical Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan;(4) Department of Surgery 1, Miyazaki Medical College, Miyazaki, Japan |
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Abstract: | Small cell carcinoma usually involves the lung and rarely affects the biliary tract, especially the cystic duct. In this article
we report a case of small cell carcinoma of the cystic duct in a 46-year-old Japanese man. The patient presented with abdominal
pain and jaundice. Imaging showed a small nodule in the cystic duct invading the common bile duct with dilatation of the proximal
biliary tree. The hepatic artery and portal vein were free from invasion. Extended right hepatic lobectomy, cholecystectomy,
and resection of the extrahepatic proximal bile ducts were performed together with lymph node dissection under the tentative
diagnosis of carcinoma of the cystic duct. Histopathologic examination of the resected specimen revealed small cell carcinoma
arising in the cystic duct and extending into the common bile duct. The postoperative clinical course was uneventful, and
the patient is doing well without any signs of recurrence 1 year after the operation. To our knowledge this is the first documented
case of a small cell carcinoma arising in the cystic duct. |
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Keywords: | Small cell carcinoma cystic duct carcinoma gallbladder carcinoma |
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