{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T12:41:33Z","timestamp":1792845693173,"version":"4.5.0"},"reference-count":11,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T00:00:00Z","timestamp":1769990400000},"content-version":"vor","delay-in-days":32,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"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":["Asian J Endoscop Surgery"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Primary bladder neuroendocrine carcinoma (NEC) is rare and aggressive. We report the first case of bladder NEC with urethral invasion following radical retropubic prostatectomy (RRP) that was successfully managed by multimodal therapy. An 80\u2010year\u2010old man with a history of RRP presented with gross hematuria. Transurethral resection revealed mixed high\u2010grade urothelial carcinoma and NEC; the clinical stage was at least cT1N0M0. After neoadjuvant chemotherapy with gemcitabine\u2010cisplatin and etoposide\u2010cisplatin, robot\u2010assisted radical cystectomy (RARC) with transperineal urethrectomy and ileal conduit diversion was performed. Severe adhesions between the bladder and rectum due to prior RRP were safely dissected using a perineal\u2010first approach aided by magnified robotic three\u2010dimensional visualization. Complete resection was achieved without complications; pathological examination confirmed ypT0N0. No recurrence was observed after 1\u2009year. This case demonstrated that RARC combined with transperineal urethrectomy was a feasible and safe option for bladder NEC after RRP when performed by an experienced urologist.<\/jats:p>","DOI":"10.1111\/ases.70251","type":"journal-article","created":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T23:55:42Z","timestamp":1770076542000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Case of Primary Bladder Neuroendocrine Carcinoma With Urethral Invasion Following Radical Prostatectomy"],"prefix":"10.1111","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-4685-6875","authenticated-orcid":false,"given":"Takaaki","family":"Yokoyama","sequence":"first","affiliation":[{"name":"Department of Urology National Defense Medical College  Tokorozawa Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroaki","family":"Kobayashi","sequence":"additional","affiliation":[{"name":"Department of Urology National Defense Medical College  Tokorozawa Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akio","family":"Horiguchi","sequence":"additional","affiliation":[{"name":"Center for Trauma, Burn and Tactical Medicine National Defense Medical College Hospital  Tokorozawa Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kosuke","family":"Miyai","sequence":"additional","affiliation":[{"name":"Department of Basic Pathology National Defense Medical College  Tokorozawa Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koetsu","family":"Hamamoto","sequence":"additional","affiliation":[{"name":"Department of Urology National Defense Medical College  Tokorozawa Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenji","family":"Kuroda","sequence":"additional","affiliation":[{"name":"Department of Urology National Defense Medical College  Tokorozawa Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keiichi","family":"Ito","sequence":"additional","affiliation":[{"name":"Department of Urology National Defense Medical College  Tokorozawa Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,2,2]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.ju.0000162085.20043.1f"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eururo.2012.04.020"},{"issue":"3","key":"e_1_2_8_4_1","first-page":"398","article-title":"Impact of Previous Abdominal Surgery on Robot\u2010Assisted Radical Cystectomy","volume":"13","author":"Yuh B. 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