{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,13]],"date-time":"2025-05-13T15:14:57Z","timestamp":1747149297474,"version":"3.40.5"},"reference-count":12,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2022,5,11]],"date-time":"2022-05-11T00:00:00Z","timestamp":1652227200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["IJU Case Reports"],"published-print":{"date-parts":[[2022,7]]},"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>Signet\u2010ring cell carcinoma is an extremely rare histological variant of upper urinary tract carcinoma, associated with poor prognosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Case presentation<\/jats:title><jats:p>We report a case of a 75\u2010year\u2010old female diagnosed with left primary upper urinary tract signet\u2010ring cell carcinoma, initially treated with surgery. Post\u2010surgical development of multifocal metastases was followed by a devastating clinical course. An autopsy confirmed the tumor's primary origin in the upper urinary tract.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>We experienced a case of upper urinary tract signet\u2010ring cell carcinoma, with a rare opportunity to thoroughly confirm its primary site with an autopsy.<\/jats:p><\/jats:sec>","DOI":"10.1002\/iju5.12462","type":"journal-article","created":{"date-parts":[[2022,5,11]],"date-time":"2022-05-11T23:34:48Z","timestamp":1652312088000},"page":"300-303","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Primary signet\u2010ring cell carcinoma of the renal pelvis: An autopsy case"],"prefix":"10.1002","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1049-3614","authenticated-orcid":false,"given":"Heisuke","family":"Iijima","sequence":"first","affiliation":[{"name":"Department of Urology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroaki","family":"Murata","sequence":"additional","affiliation":[{"name":"Department of Urology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shinnosuke","family":"Oishi","sequence":"additional","affiliation":[{"name":"Department of Urology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yusuke","family":"Kubota","sequence":"additional","affiliation":[{"name":"Department of Urology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akihiko","family":"Sakamoto","sequence":"additional","affiliation":[{"name":"Department of Urology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kuniaki","family":"Tanabe","sequence":"additional","affiliation":[{"name":"Department of Urology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazutaka","family":"Sugiyama","sequence":"additional","affiliation":[{"name":"Department of Urology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6221-693X","authenticated-orcid":false,"given":"Akihiko","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"Department of Urology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ken","family":"Kuriki","sequence":"additional","affiliation":[{"name":"Department of Pathology Yaizu City Hospital  Yaizu Shizuoka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9841-0857","authenticated-orcid":false,"given":"Haruki","family":"Kume","sequence":"additional","affiliation":[{"name":"Department of Urology The University of Tokyo  Bunkyo\u2010ku Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,5,11]]},"reference":[{"key":"e_1_2_13_2_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12894-020-00645-y"},{"key":"e_1_2_13_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1699-0463.1988.tb05331.x"},{"key":"e_1_2_13_4_1","doi-asserted-by":"publisher","DOI":"10.1080\/21681805.2017.1418020"},{"key":"e_1_2_13_5_1","doi-asserted-by":"publisher","DOI":"10.1155\/2017\/9121078"},{"key":"e_1_2_13_6_1","doi-asserted-by":"publisher","DOI":"10.1080\/003655900750042031"},{"key":"e_1_2_13_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.humpath.2008.06.022"},{"key":"e_1_2_13_8_1","doi-asserted-by":"publisher","DOI":"10.5489\/cuaj.332"},{"key":"e_1_2_13_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prp.2010.12.005"},{"key":"e_1_2_13_10_1","first-page":"127","article-title":"Clinical features of the gastric signet ring cell carcinoma including CA 19\u20109, CEA and CRP levels","volume":"7","author":"Kaya B","year":"2015","journal-title":"J. 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