ArticleIJU case reports2026
A Case of Bladder Paraganglioma With Negative Photodynamic Diagnosis Completely Resected by Staged En Bloc Transurethral Resection.
Article in IJU case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Bladder paraganglioma can be challenging to distinguish from nonpapillary bladder cancer. Here, we report a case of nonfunctional bladder paraganglioma treated with photodynamic diagnosis-assisted en bloc transurethral resection of the bladder tumor. Case Presentation: A 78-year-old man was incidentally diagnosed with a bladder tumor on imaging. Radiological and cystoscopic findings suggested bladder paraganglioma or nonpapillary urothelial carcinoma. The patient underwent en bloc transurethral resection of the bladder tumor with photodynamic diagnosis using 5-aminolevulinic acid. No fluorescence enhancement was observed during photodynamic diagnosis. Histopathological examination revealed nonfunctional bladder paraganglioma. A second-look en bloc transurethral resection with photodynamic diagnosis confirmed the absence of a residual tumor. Conclusion: This case highlights the diagnostic pitfalls of nonfunctional bladder paraganglioma presenting as a photodynamic diagnosis-negative bladder tumor and suggests that en bloc transurethral resection may be an effective organ-preserving approach in selected cases.
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