Implantation of Colorectal Cancer from the Upper Urinary Tract to the Bladder via Urine

Author Info

Katsuhiro Makino Taketo Kawai Yusuke Sato Naohiro Makise Takeru Morishige Takahiro Oshina Yoshiyuki Akiyama Yuta Yamada Masaki Nakamura Daisuke Yamada Motofumi Suzuki Tetsuo Ushiku Haruki Kume

Corresponding Author

Taketo Kawai
Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

A B S T R A C T

Although the implantation of urothelial carcinoma from the upper urinary tract to the bladder occurs frequently, the involvement of cancers of other histologic types is rare. Here, we present an unusual case of intravesical recurrence, following ureteral invasion, by colorectal cancer. A 69-year-old woman developed a local recurrence of colorectal cancer involving the sigmoid colon and left ureter. The patient underwent a sigmoidectomy and left nephroureterectomy. Six months later, bladder tumors were observed, and a transurethral resection was performed. Histological examination of the bladder tumors revealed adenocarcinoma consistent with the findings of the colorectal cancer that had been previously resected. The most probable mechanism of intravesical recurrence would be the implantation of colorectal cancer cells from the upper urinary tract to the bladder via urine.

Article Info

Article Type

Case Report

Publication history

Received: Sat 25, Jul 2020
Accepted: Mon 10, Aug 2020
Published: Thu 20, Aug 2020

Copyright

© 2023 Taketo Kawai. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Hosting by Science Repository.
DOI: 10.31487/j.COR.2020.08.22