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Urinary bladder pyogenic granuloma: a case report
Shoichiro Mukai1, Hiroyuki Tanaka, Kouji Yamasaki
1Department of Urology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki, Japan. shmuka@fc.miyazaki-u.ac.jp.
Journal of Medical Case Reports
|June 19, 2012
Summary
Pyogenic granulomas, rare bladder tumors, can mimic hemangiomas. This case highlights a urinary bladder pyogenic granuloma presenting as a bladder mass, emphasizing diagnostic considerations for this vascular lesion.
Area of Science:
- Urology
- Pathology
- Oncology
Background:
- Capillary-type hemangiomas of the urinary bladder are rare, with over 100 reported cases.
- Pyogenic granulomas, common vascular lesions in skin and oral mucosa, share histopathological similarities with capillary hemangiomas.
- The occurrence and characteristics of pyogenic granulomas specifically within the urinary bladder are not well-documented.
Purpose of the Study:
- To present a rare case of pyogenic granuloma of the urinary bladder.
- To discuss the diagnostic challenges and potential predisposing factors for this condition.
Main Methods:
- A case report of a 78-year-old Japanese man with a bladder mass.
- The patient had a history of chemotherapy for pancreatic cancer.
- Diagnostic methods included cystoscopy, surgical resection, and histopathological analysis of the mass.
Main Results:
- A solitary, pedunculated bladder mass measuring 1.2 cm was identified.
- Histopathology revealed marked lobular capillary proliferation with surface erosions.
- The findings supported a diagnosis of pyogenic granuloma of the urinary bladder.
Conclusions:
- Cystoscopic and pathological findings were consistent with pyogenic granuloma of the urinary bladder.
- Chemotherapy may be a potential predisposing factor for bladder pyogenic granuloma.
- This case underscores the importance of considering pyogenic granuloma in the differential diagnosis of bladder vascular lesions.
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