scholarly journals Transdifferentiation of Small Cell Carcinoma of the Urinary Bladder from Urothelial Carcinoma after Transurethral Resection of a Bladder Tumor, Intravesical Bacillus Calmette-Guerin Instillation, and Chemotherapy: A Case Report

2016 ◽  
Vol 9 (3) ◽  
pp. 786-791 ◽  
Author(s):  
Kento Morozumi ◽  
Shunichi Namiki ◽  
Takashi Kudo ◽  
Masataka  Aizawa ◽  
Naomasa  Ioritani ◽  
...  
Keyword(s):  
Case Report ◽  
Urinary Bladder ◽  
Urothelial Carcinoma ◽  
Cell Carcinoma ◽  
Small Cell Carcinoma ◽  
Transurethral Resection ◽  
Bladder Tumor ◽  
Small Cell ◽  
Pathological Examination ◽  
Bacillus Calmette Guerin

A 73-year-old male underwent transurethral resection of a bladder tumor in August 2010 and April 2011. Pathological examination revealed urothelial carcinoma. After the surgery, chemotherapy and intravesical Bacillus Calmette-Guerin instillation were performed. In September 2014, he once again underwent transurethral resection of the bladder tumor for recurrence, and was again diagnosed with urothelial carcinoma, pT2, by pathological examination. After neoadjuvant chemotherapy, radical cystectomy for tumor recurrence was performed. Pathological examination at this time revealed small cell carcinoma, pT3N0. It is rare for urothelial carcinoma to change to small cell carcinoma, and the mechanism and cause of this change are still unknown. In this case report, we discuss what causes small cell carcinoma of the urinary bladder and review the literature regarding its origin.

scholarly journals Metastatic Small Cell Carcinoma of the Urinary Bladder That Recurred in the Vagina 6 Years after Radical Cystectomy: A Case Report

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Makoto Isono ◽  
Keiichi Ito ◽  
Shinsuke Hamada ◽  
Masahiro Takahashi ◽  
Hidenori Sasa ◽  
...  
Keyword(s):  
Urinary Bladder ◽  
Urothelial Carcinoma ◽  
Cell Carcinoma ◽  
Radical Cystectomy ◽  
Small Cell Carcinoma ◽  
Transurethral Resection ◽  
Small Cell ◽  
Pelvic Bone ◽  
High Grade ◽  
Surgical Specimen

Small cell carcinoma (SCC) of the urinary bladder is highly aggressive and portends a poor outcome. Herein, we report a patient with recurrent SCC of the urinary bladder who experienced an unusually long-term disease-free duration after radical cystectomy. The patient was a 60-year-old woman who had undergone transurethral resection followed by radical cystectomy for muscle-invasive bladder cancer (high-grade urothelial carcinoma with adenocarcinomatous differentiation) 6 years prior; the surgical specimen had a negative surgical margin. She was referred to our hospital because of continuous bleeding from her vagina. Magnetic resonance imaging showed a mass located at the anterior wall of her residual vagina, a biopsy of which confirmed a pathological diagnosis of adenocarcinoma. The vaginal tumor and a section of the sigmoid colon were resected en bloc and were pathologically diagnosed as adenocarcinoma and SCC. We reevaluated the initial transurethral resection specimen and found SCC with foci of adenocarcinoma concomitant with high-grade urothelial carcinoma. Local recurrence and metastasis at the pelvic bone occurred 4 months later; although radiation therapy was performed, she died of the progressive disease.

Metachronous primary urothelial carcinoma following small cell carcinoma of the urinary bladder

2014 ◽  
Vol 87 (1-2) ◽  
pp. 96-98
Author(s):  
Henry H. I. Yao ◽  
Kevin Chu ◽  
Christopher Hallot ◽  
Jonathan Lewin
Keyword(s):  
Urinary Bladder ◽  
Urothelial Carcinoma ◽  
Cell Carcinoma ◽  
Small Cell Carcinoma ◽  
Small Cell

Distinction of High-Grade Neuroendocrine Carcinoma/Small Cell Carcinoma From Conventional Urothelial Carcinoma of Urinary Bladder

2011 ◽  
Vol 19 (5) ◽  
pp. 395-399 ◽  
Author(s):  
Sherry Thompson ◽  
Maureen Cioffi-Lavina ◽  
Jennifer Chapman-Fredricks ◽  
Carmen Gomez-Fernandez ◽  
Gustavo Fernandez-Castro ◽  
...  
Keyword(s):  
Urinary Bladder ◽  
Urothelial Carcinoma ◽  
Cell Carcinoma ◽  
Small Cell Carcinoma ◽  
Neuroendocrine Carcinoma ◽  
Small Cell ◽  
High Grade

Treatment of Small Cell Carcinoma of the Bladder With Chemotherapy and Radiation after Transurethral Resection of a Bladder Tumor

2016 ◽  
Vol 39 (1) ◽  
pp. 69-75 ◽  
Author(s):  
Curtis M. Bryant ◽  
Long H. Dang ◽  
Bruce K. Stechmiller ◽  
Scott M. Gilbert ◽  
Christopher G. Morris ◽  
...  
Keyword(s):  
Cell Carcinoma ◽  
Small Cell Carcinoma ◽  
Transurethral Resection ◽  
Bladder Tumor ◽  
Small Cell ◽  
Carcinoma Of The Bladder
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