{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T16:45:43Z","timestamp":1772297143008,"version":"3.50.1"},"reference-count":10,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2023,6,14]],"date-time":"2023-06-14T00:00:00Z","timestamp":1686700800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["IJU Case Reports"],"published-print":{"date-parts":[[2023,7]]},"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>Urachus carcinoma is a rare malignancy with an aggressive potential and a poor prognosis, and evidence is limited for its diagnosis and treatment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Case presentation<\/jats:title><jats:p>A 75\u2010year\u2010old man underwent fluorodeoxyglucose positron emission tomography\/computed tomography for staging prostate cancer, and a mass (standardized uptake value max 9.5) was observed on the outside of the urinary bladder dome. T2\u2010weighted magnetic resonance imaging showed the urachus and a low\u2010intensity tumor, which suggested a malignant tumor. We suspected urachal carcinoma and performed total resection of the urachus and partial cystectomy. Pathological examination revealed mucosa\u2010associated lymphoid tissue lymphoma with cells positive for CD20 and negative for CD3, CD5, and cyclin D1. After the surgery, no recurrence has been observed for more than 2\u2009years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>We encountered an extremely rare case of mucosa\u2010associated lymphoid tissue lymphoma of the urachus. Surgical resection of the tumor provided an accurate diagnosis and good disease control.<\/jats:p><\/jats:sec>","DOI":"10.1002\/iju5.12599","type":"journal-article","created":{"date-parts":[[2023,6,15]],"date-time":"2023-06-15T05:24:49Z","timestamp":1686806689000},"page":"253-256","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A case of mucosal\u2010associated lymphoid tissue lymphoma of the urachus"],"prefix":"10.1002","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-0926-1897","authenticated-orcid":false,"given":"Kazuma","family":"Tsuboi","sequence":"first","affiliation":[{"name":"Department of Urology Hiroshima City Hiroshima Citizens Hospital  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0002-1592","authenticated-orcid":false,"given":"Kensuke","family":"Bekku","sequence":"additional","affiliation":[{"name":"Department of Urology Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences  Okayama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kohei","family":"Haisa","sequence":"additional","affiliation":[{"name":"Department of Urology Hiroshima City Hiroshima Citizens Hospital  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuta","family":"Kajihara","sequence":"additional","affiliation":[{"name":"Department of Urology Hiroshima City Hiroshima Citizens Hospital  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takuji","family":"Tsugawa","sequence":"additional","affiliation":[{"name":"Department of Urology Hiroshima City Hiroshima Citizens Hospital  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yosuke","family":"Inoue","sequence":"additional","affiliation":[{"name":"Department of Urology Hiroshima City Hiroshima Citizens Hospital  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomoko","family":"Sako","sequence":"additional","affiliation":[{"name":"Department of Urology Hiroshima City Hiroshima Citizens Hospital  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wataru","family":"Murao","sequence":"additional","affiliation":[{"name":"Department of Urology Hiroshima City Hiroshima Citizens Hospital  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shin","family":"Ebara","sequence":"additional","affiliation":[{"name":"Department of Urology Hiroshima City Hiroshima Citizens Hospital  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,6,14]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1080\/15513815.2016.1188871"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1182\/blood-2002-04-1279"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.anndiagpath.2021.151841"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.humpath.2015.07.021"},{"key":"e_1_2_12_6_1","first-page":"1","article-title":"Current management of urachal carcinoma; an evidence\u2010based guide for clinical practice","volume":"39","author":"Loizzo D","year":"2022","journal-title":"Eur. 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