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Case Reports in Urology
Volume 2018 (2018), Article ID 1405108, 4 pages
https://doi.org/10.1155/2018/1405108
Case Report

A Case of Early Stage Bladder Carcinosarcoma in Late Recurrence of Urothelial Carcinoma after Transurethral Resection

1Department of Urology, Higashimatsuyama Municipal Hospital, Higashimatsuyama 355-0041, Japan
2Department of Urology, Nihon University School of Medicine, Tokyo 173-8610, Japan
3Department of Urology, Kawaguchi Municipal Medical Center, Kawaguchi 333-0833, Japan
4Department of Pathology, Nihon University School of Medicine, Tokyo 173-8610, Japan

Correspondence should be addressed to Daisaku Hirano; moc.ytfin@16540dyb

Received 1 July 2017; Revised 2 December 2017; Accepted 14 December 2017; Published 15 January 2018

Academic Editor: Mohamed A. Ghoneim

Copyright © 2018 Daisaku Hirano 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.

Abstract

Carcinosarcomas of the urinary bladder are rare biphasic neoplasms, consisting of both malignant epithelial and malignant mesenchymal components, and the prognosis of this tumor is unfavorable in most patients with even possibility of resection of disease. A 77-year-old male with a history of transurethral resection (TUR) of urothelial carcinoma (UC) of the bladder and adjuvant intravesical chemotherapy with pirarubicin 10 years ago revisited our department with a gross hematuria. Cystoscopy demonstrated an approximately 2.5 cm nonpapillary tumor on the right wall of the bladder. Pelvic MRI showed the tumor without extending the base of the bladder wall. The tumor could be completely removed with TUR. The malignant epithelial elements consisted of high-grade UC and the majority of mesenchymal components were fibrosarcomatous differentiation based on immunohistochemical studies. The tumor could be pathologically also suspected to be an early stage on TUR specimens. Although he has received no additional intervention due to the occurrence of myocardial infarction at three weeks after the TUR, he has been alive with no evidence of recurrence of the disease 27 months after the TUR. Some early stages of bladder carcinosarcoma might have a favorable prognosis without aggressive treatments.