IJU case reports · 2026
A Case of Bladder Paraganglioma With Negative Photodynamic Diagnosis Completely Resected by Staged En Bloc Transurethral Resection.
СтатьяНазвание и аннотация: Перевод в очереди
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Gozu Shu, Nakanishi Yasukazu, Okumura Gaku, Ikezoe Erika, Imasato Naoki, Hirose Kohei, Kataoka Madoka, Yajima Shugo, Masuda Hitoshi
Аннотация
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.
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.