{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T05:05:11Z","timestamp":1777871111951,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2010,2,3]],"date-time":"2010-02-03T00:00:00Z","timestamp":1265155200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2010,2,3]],"date-time":"2010-02-03T00:00:00Z","timestamp":1265155200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Urol Int"],"abstract":"<jats:p>We reviewed 82 patients with 83 upper urinary tract tumors and investigated those who had associated bladder tumors. Of these patients, 7 (9%) had previous bladder tumors, 14 (17%) had concurrent bladder tumors, and 18 (22%) subsequently developed bladder tumors. As 1 patient subsequently developed a bladder and a upper urinary tract tumor at different times, 38 patients (46%) had associated bladder tumors. The time interval between the occurrence of a previous bladder tumor and the subsequent upper urinary tract tumor was 11 to 144 months (mean: 41 months), while that between an upper urinary tract tumor and the subsequent bladder tumor was 3\u201331 months (mean: 12 months). Most of the previous bladder tumors were papillary, multiple, and noninvasive (pT1 or less). Multiple upper urinary tract tumors were associated with a high incidence of concurrent bladder tumors, while high-grade (G2, G3) or invasive (pT2 or more) upper urinary tract tumors were associated with a high incidence of concurrent and subsequent bladder tumors. Patients with concurrent bladder tumors had a worse prognosis than those with previous or subsequent bladder tumors due to the increased incidence of high-stage tumors at either the upper tract or bladder site. Our findings suggest that tumor cell implantation is a possible mechanism for the recurrence of bladder tumors and upper urinary tract tumors.<\/jats:p>","DOI":"10.1159\/000282768","type":"journal-article","created":{"date-parts":[[2010,2,4]],"date-time":"2010-02-04T10:32:04Z","timestamp":1265279524000},"page":"128-133","source":"Crossref","is-referenced-by-count":3,"title":["Clinicopathological Study on Upper Urinary Tract Tumors and Associated Bladder Tumors"],"prefix":"10.1159","author":[{"given":"K.","family":"Nishimura","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Shimizu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Iwasaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Miyoshi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Mizutani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2010,2,3]]},"container-title":["Urologia Internationalis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000282768","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T17:01:42Z","timestamp":1777568502000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000282768"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,2,3]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000282768","archive":["Portico"],"relation":{},"ISSN":["0042-1138","1423-0399"],"issn-type":[{"value":"0042-1138","type":"print"},{"value":"1423-0399","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010,2,3]]}}}