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Case Reports in Medicine
Volume 2017, Article ID 3919635, 3 pages
Case Report

A Case of Urachal Carcinoma of the Abdominal Wall in a Kidney Transplant Recipient

1Department of Nephrology, Kitasato University Medical Center, Saitama, Japan
2Department of Urology, Kitasato University Medical Center, Saitama, Japan
3Department of Urology, Kitasato University School of Medicine, Kanagawa, Japan
4Department of Nephrology, Kitasato University School of Medicine, Kanagawa, Japan

Correspondence should be addressed to Yasushi Nagaba;

Received 17 March 2017; Accepted 13 April 2017; Published 4 May 2017

Academic Editor: Gottfried J. Locker

Copyright © 2017 Takuya Yamazaki et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Urachal carcinoma is an extremely rare malignant tumor arising from the urachus in the fetus. We report a patient who developed urachal carcinoma 18 years after kidney transplantation. A 59-year-old man was admitted because of abdominal pain and massive ascites. He had undergone kidney transplantation 18 years earlier and had end-stage renal disease requiring dialysis. Abdominal CT showed massive ascites and an abdominal wall cystic mass separated from the peritoneal cavity. Hemodialysis was started, and paralytic ileus was diagnosed and treated. His ileus symptoms improved temporarily, but he died of myocardial infarction. An autopsy was performed, which revealed cystadenocarcinoma in the abdominal wall mass, leading to a diagnosis of urachal carcinoma.