scholarly journals A Case of Primary Small-Cell Carcinoma of the Bladder

2016 ◽  
Vol 9 (3) ◽  
pp. 574-579 ◽  
Author(s):  
Ashita Ono ◽  
Yosuke Hirasawa ◽  
Mitsumasa Yamashina ◽  
Naoto Kaburagi ◽  
Takashi Mima ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Urothelial Carcinoma ◽  
Cell Carcinoma ◽  
Radical Cystectomy ◽  
Small Cell Carcinoma ◽  
Distant Metastasis ◽  
Small Cell ◽  
Common Type ◽  
Cell Of Origin ◽  
Carcinoma Of The Bladder

Primary small-cell carcinoma arising from the bladder (SmCCB) is uncommon. It differs from urothelial carcinoma (UC), the most common type of bladder cancer, with respect to its cell of origin, biology, and prognosis. Biologically, prostatic SmCCB is much more aggressive than UC, and the prognosis for cases with distant metastasis is especially poor. We report here a case of primary SmCCB (cT3bN1M0) treated with radical cystectomy.

Impact of histologic subtype on bladder cancer outcome.

2017 ◽  
Vol 35 (6_suppl) ◽  
pp. 391-391
Author(s):  
Samuel L Washington ◽  
Thomas Sanford ◽  
Michael S. Leapman ◽  
Maxwell V. Meng ◽  
Sima P. Porten
Keyword(s):  
Overall Survival ◽  
Squamous Cell Carcinoma ◽  
Bladder Cancer ◽  
Cell Carcinoma ◽  
Radical Cystectomy ◽  
Small Cell Carcinoma ◽  
Squamous Cell ◽  
Small Cell ◽  
Variant Histology ◽  
The Impact

391 Background: Variant histology is increasingly recognized but its impact on outcomes is less well known compared to urothelial carcinoma (UC). We aim to evaluate the impact of variant histology on bladder cancer outcomes using the National Cancer Database (NCDB), a U.S. population-based cohort capturing approximately 70% of newly diagnosed cancer cases. Methods: We identified patients with bladder cancer from 2004 to 2013 treated with radical cystectomy. We compared clinical and pathologic characteristics between those with UC and those with variant histology. Chi-square test was utilized for categorical variables and Independent Samples t-test for continuous variables. Multivariable Cox regression was used with hazard ratios (HR) and 95% confidence intervals (CI) to identify independent predictors of overall survival. Results: A total of 40,918 patients were identified with mean age 67 years, with male (75%) and Caucasian (90.9%) predominance. Median follow-up was 36.9 months (IQR 16.1-67.5). Squamous cell carcinoma (4.4%), small cell carcinoma (1.6%) and micropapillary (0.9%) were the most common variant histologies. Variant histology was found more commonly in women (35.6% vs 23.4%, p < 0.05), black (8.8% vs 5.6%, p < 0.05), stage pT3 or T4 (67% vs 50.2%, p < 0.05) and node positive (30.8% vs 26.9%, p < 0.05). In adjusted models squamous cell carcinoma (HR 1.3, 95% CI 1.2-1.4), small cell carcinoma (HR 1.6, 95% CI 1.5-1.8) and black ethnicity (HR 1.2, 95% CI 1.1-1.2) were independent predictors of increased mortality risk while micropapillary was associated with decreased risk (HR 0.8, 95% CI 0.7-1.0) after controlling for age, gender, surgical margin status, pathologic T stage, pathologic N stage and history of chemotherapy. All associations remained statistically significant (p < 0.05). Conclusions: Non-urothelial histology was associated with worse overall survival in patients with bladder cancer treated with radical cystectomy; however, contrary to some previous reports, micropapillary variant was associated with lower risk of death. In addition, black ethnicity was associated with worse survival. Further investigation is needed to explore the impact of variant histology as well as other socioeconomic factors on survival after cystectomy.

Long-term results of radical cystectomy and role of adjuvant chemotherapy for small cell carcinoma of the bladder

2015 ◽  
Vol 22 (6) ◽  
pp. 549-554 ◽  
Author(s):  
Dharam Kaushik ◽  
Igor Frank ◽  
Stephen A Boorjian ◽  
John C Cheville ◽  
Manuel S Eisenberg ◽  
...  
Keyword(s):  
Adjuvant Chemotherapy ◽  
Cell Carcinoma ◽  
Radical Cystectomy ◽  
Small Cell Carcinoma ◽  
Small Cell ◽  
Long Term Results ◽  
Carcinoma Of The Bladder

scholarly journals Advanced small cell carcinoma of the bladder: clinical characteristics, treatment patterns and outcomes in 960 patients and comparison with urothelial carcinoma

2015 ◽  
Vol 5 (2) ◽  
pp. 192-199 ◽  
Author(s):  
Daniel M. Geynisman ◽  
Elizabeth Handorf ◽  
Yu‐Ning Wong ◽  
Jamie Doyle ◽  
Elizabeth R. Plimack ◽  
...  
Keyword(s):  
Urothelial Carcinoma ◽  
Cell Carcinoma ◽  
Small Cell Carcinoma ◽  
Clinical Characteristics ◽  
Treatment Patterns ◽  
Small Cell ◽  
Carcinoma Of The Bladder

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.

scholarly journals A genetically defined disease model reveals that urothelial cells can initiate divergent bladder cancer phenotypes

2019 ◽  
Vol 117 (1) ◽  
pp. 563-572 ◽  
Author(s):  
Liang Wang ◽  
Bryan A. Smith ◽  
Nikolas G. Balanis ◽  
Brandon L. Tsai ◽  
Kim Nguyen ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Urothelial Carcinoma ◽  
Cell Carcinoma ◽  
Small Cell Carcinoma ◽  
Small Cell ◽  
Genetically Engineered ◽  
Transcriptional Profile ◽  
Urothelial Cells ◽  
Molecular Features ◽  
Cancer Phenotypes

Small cell carcinoma of the bladder (SCCB) is a rare and lethal phenotype of bladder cancer. The pathogenesis and molecular features are unknown. Here, we established a genetically engineered SCCB model and a cohort of patient SCCB and urothelial carcinoma samples to characterize molecular similarities and differences between bladder cancer phenotypes. We demonstrate that SCCB shares a urothelial origin with other bladder cancer phenotypes by showing that urothelial cells driven by a set of defined oncogenic factors give rise to a mixture of tumor phenotypes, including small cell carcinoma, urothelial carcinoma, and squamous cell carcinoma. Tumor-derived single-cell clones also give rise to both SCCB and urothelial carcinoma in xenografts. Despite this shared urothelial origin, clinical SCCB samples have a distinct transcriptional profile and a unique transcriptional regulatory network. Using the transcriptional profile from our cohort, we identified cell surface proteins (CSPs) associated with the SCCB phenotype. We found that the majority of SCCB samples have PD-L1 expression in both tumor cells and tumor-infiltrating lymphocytes, suggesting that immune checkpoint inhibitors could be a treatment option for SCCB. We further demonstrate that our genetically engineered tumor model is a representative tool for investigating CSPs in SCCB by showing that it shares a similar a CSP profile with clinical samples and expresses SCCB–up-regulated CSPs at both the mRNA and protein levels. Our findings reveal distinct molecular features of SCCB and provide a transcriptional dataset and a preclinical model for further investigating SCCB biology.

Long-Term Outcomes of Organ Preservation in Patients with Small Cell Carcinoma of the Bladder

2015 ◽  
Vol 94 (4) ◽  
pp. 401-405 ◽  
Author(s):  
Jairam R. Eswara ◽  
Niall M. Heney ◽  
Chin-Lee Wu ◽  
W. Scott McDougal
Keyword(s):  
Cell Carcinoma ◽  
Small Cell Carcinoma ◽  
Metastatic Disease ◽  
Advanced Disease ◽  
Chemical Exposure ◽  
Small Cell ◽  
Cancer Specific Survival ◽  
Entire Cohort ◽  
Aggressive Disease ◽  
Carcinoma Of The Bladder

Background: Small cell carcinoma of the bladder is an uncommon but clinically aggressive disease. There is no standard surgical or medical management for the disease. Methods: Between 1995 and 2009, 28 patients underwent transurethral resection (TUR) and/or cystectomy, chemotherapy, and/or radiation for small cell carcinoma of the bladder at our institution. Results: The median follow-up for survivors was 34 months. Patients presented most often with muscle-invasive disease (T2-4 - 89%), and 21% had lymph node/distant metastases. Tobacco use and chemical exposure were noted in 64 and 4% of patients, respectively. Patients with T1-2N0M0 had a median survival of 22 months compared to 8 months for those with more advanced disease (p = 0.03). Patients with T3-4 or nodal/metastatic disease who were given chemotherapy had an improved survival compared to those with T3-4 or nodal/metastatic disease who did not undergo chemotherapy (13 vs. 4 months, p = 0.005). The median time to recurrence of the entire cohort was 8 months, overall and cancer-specific survival was 14 months, and 5-year survival was 11%. Conclusions: Small cell carcinoma of the bladder is an aggressive disease with poor outcomes. Patients with T1-2N0M0 disease survived longer than those with advanced disease. Patients with T3-4 or nodal/metastatic disease had improved survival with chemotherapy.

Locoregional Small Cell Carcinoma of the Bladder: Clinical Characteristics and Treatment Patterns

2014 ◽  
Vol 191 (2) ◽  
pp. 329-334 ◽  
Author(s):  
Sanjay G. Patel ◽  
C.J. Stimson ◽  
Harras B. Zaid ◽  
Matthew J. Resnick ◽  
Michael S. Cookson ◽  
...  
Keyword(s):  
Cell Carcinoma ◽  
Small Cell Carcinoma ◽  
Clinical Characteristics ◽  
Treatment Patterns ◽  
Small Cell ◽  
Carcinoma Of The Bladder
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