{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T07:04:03Z","timestamp":1785135843337,"version":"3.55.0"},"reference-count":11,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T00:00:00Z","timestamp":1783036800000},"content-version":"vor","delay-in-days":2,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T00:00:00Z","timestamp":1782864000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["IJU Case Reports"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Bladder paraganglioma can be challenging to distinguish from nonpapillary bladder cancer. Here, we report a case of nonfunctional bladder paraganglioma treated with photodynamic diagnosis\u2010assisted en bloc transurethral resection of the bladder tumor.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case Presentation<\/jats:title>\n                    <jats:p>A 78\u2010year\u2010old 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\u2010aminolevulinic acid. No fluorescence enhancement was observed during photodynamic diagnosis. Histopathological examination revealed nonfunctional bladder paraganglioma. A second\u2010look en bloc transurethral resection with photodynamic diagnosis confirmed the absence of a residual tumor.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This case highlights the diagnostic pitfalls of nonfunctional bladder paraganglioma presenting as a photodynamic diagnosis\u2010negative bladder tumor and suggests that en bloc transurethral resection may be an effective organ\u2010preserving approach in selected cases.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/iju5.70220","type":"journal-article","created":{"date-parts":[[2026,7,4]],"date-time":"2026-07-04T04:18:50Z","timestamp":1783138730000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Case of Bladder Paraganglioma With Negative Photodynamic Diagnosis Completely Resected by Staged En Bloc Transurethral Resection"],"prefix":"10.1002","volume":"9","author":[{"given":"Shu","family":"Gozu","sequence":"first","affiliation":[{"name":"Department of Urology National Cancer Center Hospital East  Kashiwa\u2010shi, Chiba Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasukazu","family":"Nakanishi","sequence":"additional","affiliation":[{"name":"Department of Urology National Cancer Center Hospital East  Kashiwa\u2010shi, Chiba Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gaku","family":"Okumura","sequence":"additional","affiliation":[{"name":"Department of Urology National Cancer Center Hospital East  Kashiwa\u2010shi, Chiba Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erika","family":"Ikezoe","sequence":"additional","affiliation":[{"name":"Department of Urology National Cancer Center Hospital East  Kashiwa\u2010shi, Chiba Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naoki","family":"Imasato","sequence":"additional","affiliation":[{"name":"Department of Urology National Cancer Center Hospital East  Kashiwa\u2010shi, Chiba Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6384-7071","authenticated-orcid":false,"given":"Kohei","family":"Hirose","sequence":"additional","affiliation":[{"name":"Department of Urology National Cancer Center Hospital East  Kashiwa\u2010shi, Chiba Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Madoka","family":"Kataoka","sequence":"additional","affiliation":[{"name":"Department of Urology National Cancer Center Hospital East  Kashiwa\u2010shi, Chiba Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shugo","family":"Yajima","sequence":"additional","affiliation":[{"name":"Department of Urology National Cancer Center Hospital East  Kashiwa\u2010shi, Chiba 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