title: Metastatic cholangiocarcinoma as a cause of appendicitis: a case report and literature review.
abstract: Metastatic carcinoma that causes appendicitis is extremely rare. To our knowledge, metastatic cholangiocarcinoma in the appendix has been reported in only 1 case in the English literature. We report herein the case of an 87-year-old woman who presented with abdominal pain and jaundice. Advanced cholangiocellular carcinoma and a proximal appendiceal mass with appendicitis were detected on contrast-enhanced computed tomography and positron emission tomography/computed tomography. After elective laparoscopic appendectomy and wedge resection of the cecum, pathologic results revealed metastatic adenocarcinoma from extrahepatic cholangiocellular carcinoma in the appendix.
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Sung Il
authors.initials: SI
authors.lastname: Kang
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jeonghyun
authors.initials: J
authors.lastname: Kang
authors.affiliation: Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Heae Surng
authors.initials: HS
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Sung Ill
authors.initials: SI
authors.lastname: Jang
authors.affiliation: Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Dong Ki
authors.initials: DK
authors.lastname: Lee
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Kang Young
authors.initials: KY
authors.lastname: Lee
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Seung-Kook
authors.initials: SK
authors.lastname: Sohn
keywords: Appendicitis; Cholagiocarcinoma; Metastasis