Myopericytoma in urinary bladder: a case report

BACKGROUND: Myopericytoma is reported to occur mainly in the skin and superficial soft tissue of the extremities. In contrast, occurrence in the urinary bladder is extremely rare. CASE PRESENTATION: We describe a 75-year-old Japanese man who developed a submucosal tumor at the right trigone of his b...

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Autores principales: Nagai, Takahiro, Kamimura, Toshio, Itou, Kaoru, Fujii, Masato, Tsukino, Hiromasa, Mukai, Shoichiro, Akiyama, Yutaka, Kataoka, Hiroaki, Kamoto, Toshiyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5316426/
https://www.ncbi.nlm.nih.gov/pubmed/28214470
http://dx.doi.org/10.1186/s13256-017-1226-2
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author Nagai, Takahiro
Kamimura, Toshio
Itou, Kaoru
Fujii, Masato
Tsukino, Hiromasa
Mukai, Shoichiro
Akiyama, Yutaka
Kataoka, Hiroaki
Kamoto, Toshiyuki
author_facet Nagai, Takahiro
Kamimura, Toshio
Itou, Kaoru
Fujii, Masato
Tsukino, Hiromasa
Mukai, Shoichiro
Akiyama, Yutaka
Kataoka, Hiroaki
Kamoto, Toshiyuki
author_sort Nagai, Takahiro
collection PubMed
description BACKGROUND: Myopericytoma is reported to occur mainly in the skin and superficial soft tissue of the extremities. In contrast, occurrence in the urinary bladder is extremely rare. CASE PRESENTATION: We describe a 75-year-old Japanese man who developed a submucosal tumor at the right trigone of his bladder that led to interference with the discharge of right ureteral calculus. No invasive growth was observed by magnetic resonance imaging. Transurethral resection was successfully performed; histopathological analysis revealed perivascular proliferation of spindle-shaped to oval-shaped, cytologically bland tumor cells with eosinophilic cytoplasm. On immunohistochemical examination, the tumor cells were positive for alpha-smooth muscle actin, desmin, CD34 and h-caldesmon. CONCLUSION: Cystoscopic and pathological findings were compatible with a diagnosis of myopericytoma of the urinary bladder.
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spelling pubmed-53164262017-02-24 Myopericytoma in urinary bladder: a case report Nagai, Takahiro Kamimura, Toshio Itou, Kaoru Fujii, Masato Tsukino, Hiromasa Mukai, Shoichiro Akiyama, Yutaka Kataoka, Hiroaki Kamoto, Toshiyuki J Med Case Rep Case Report BACKGROUND: Myopericytoma is reported to occur mainly in the skin and superficial soft tissue of the extremities. In contrast, occurrence in the urinary bladder is extremely rare. CASE PRESENTATION: We describe a 75-year-old Japanese man who developed a submucosal tumor at the right trigone of his bladder that led to interference with the discharge of right ureteral calculus. No invasive growth was observed by magnetic resonance imaging. Transurethral resection was successfully performed; histopathological analysis revealed perivascular proliferation of spindle-shaped to oval-shaped, cytologically bland tumor cells with eosinophilic cytoplasm. On immunohistochemical examination, the tumor cells were positive for alpha-smooth muscle actin, desmin, CD34 and h-caldesmon. CONCLUSION: Cystoscopic and pathological findings were compatible with a diagnosis of myopericytoma of the urinary bladder. BioMed Central 2017-02-19 /pmc/articles/PMC5316426/ /pubmed/28214470 http://dx.doi.org/10.1186/s13256-017-1226-2 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Case Report
Nagai, Takahiro
Kamimura, Toshio
Itou, Kaoru
Fujii, Masato
Tsukino, Hiromasa
Mukai, Shoichiro
Akiyama, Yutaka
Kataoka, Hiroaki
Kamoto, Toshiyuki
Myopericytoma in urinary bladder: a case report
title Myopericytoma in urinary bladder: a case report
title_full Myopericytoma in urinary bladder: a case report
title_fullStr Myopericytoma in urinary bladder: a case report
title_full_unstemmed Myopericytoma in urinary bladder: a case report
title_short Myopericytoma in urinary bladder: a case report
title_sort myopericytoma in urinary bladder: a case report
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5316426/
https://www.ncbi.nlm.nih.gov/pubmed/28214470
http://dx.doi.org/10.1186/s13256-017-1226-2
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