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Published in: Journal of Medical Case Reports 1/2017

Open Access 01-12-2017 | Case report

Myopericytoma in urinary bladder: a case report

Authors: Takahiro Nagai, Toshio Kamimura, Kaoru Itou, Masato Fujii, Hiromasa Tsukino, Shoichiro Mukai, Yutaka Akiyama, Hiroaki Kataoka, Toshiyuki Kamoto

Published in: Journal of Medical Case Reports | Issue 1/2017

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Abstract

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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Metadata
Title
Myopericytoma in urinary bladder: a case report
Authors
Takahiro Nagai
Toshio Kamimura
Kaoru Itou
Masato Fujii
Hiromasa Tsukino
Shoichiro Mukai
Yutaka Akiyama
Hiroaki Kataoka
Toshiyuki Kamoto
Publication date
01-12-2017
Publisher
BioMed Central
Published in
Journal of Medical Case Reports / Issue 1/2017
Electronic ISSN: 1752-1947
DOI
https://doi.org/10.1186/s13256-017-1226-2

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