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Updated: Dec 9, 2025
An Orthotopic Bladder Cancer Model for Gene Delivery Studies
Published on: December 1, 2013
Progressive plasmacytoid variant bladder cancer with retroperitoneal dissemination: An autopsy case report
Yuki Kohada1, Yasuhiro Kaiho1, Jun Ito1
1Division of Urology Faculty of Medicine Tohoku Medical and Pharmaceutical University Sendai Japan.
Introduction:
Plasmacytoid urothelial carcinoma is a rare and aggressive variant of bladder cancer.
Case Presentation:
A 75-year-old woman presented with plasmacytoid urothelial carcinoma with retroperitoneal dissemination was treated with chemotherapy. After an unsuccessful first-line chemotherapy with gemcitabine and cisplatin, we assessed circulating tumor cells; one such cell was found to be positive for programmed death-ligand 1. The patient received second-line chemotherapy with pembrolizumab. However, the tumor extended to the retroperitoneal organs, and the patient eventually died. Autopsy revealed a widespread diffuse scirrhous infiltration of the carcinoma into the retroperitoneum. However, distant metastasis was not observed.
Conclusion:
The evaluation of circulating tumor cells and autopsy revealed a disease state of progressive plasmacytoid urothelial carcinoma treated with pembrolizumab.
