{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,29]],"date-time":"2025-10-29T06:25:20Z","timestamp":1761719120093,"version":"3.40.5"},"reference-count":16,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2021,12,27]],"date-time":"2021-12-27T00:00:00Z","timestamp":1640563200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Diagnostic Cytopathology"],"published-print":{"date-parts":[[2022,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Mucinous urothelial carcinoma (UC) is a rare variant and only 18 cases of mucinous UC have been reported. In this article, we report a case of mucinous UC focusing on both cytological and histological findings. A 92\u2010year\u2010old female was referred to our hospital because of gross hematuria. Clinical computed tomography scan showed 2.2\u2010cm papillary lesion in the lower part of the left ureter. Urine cytology was performed, and cytopathological findings showed that there were a few atypical cells with pale to clear cytoplasm, and a low amount of mucin in the background was identified by periodic acid\u2010schiff (PAS) and alcian blue (AB) staining. Laparoscopic radical nephrectomy of left renal pelvis and ureter was performed. The gross examination revealed that a white\u2010gray, papillary\u2010sessile tumor was found in the lower part of the left ureter. Histologically, conventional high grade UC cells were seen in some areas, and tumor cells in other areas showed abundant clear cytoplasm with extracellular and intracytoplasmic mucin. Immunohistochemical analysis revealed that tumor cells were positive for CK7, CK20, p63, GATA3, MUC1, MUC2, and MUC5AC and negative for MUC6 and CDX2. Histopathological diagnosis was mucinous UC with clear cell component, and the pathological stage was pT1N0M0. The patient has remained well and disease\u2010free for 3\u2009months after the operation. Familiarity and recognizing the characteristic pathological findings of mucinous UC are important because it represents a malignant neoplasm.<\/jats:p>","DOI":"10.1002\/dc.24921","type":"journal-article","created":{"date-parts":[[2021,12,27]],"date-time":"2021-12-27T09:23:25Z","timestamp":1640597005000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Cytological and histological findings of upper tract mucinous urothelial carcinoma with clear cell component: A case report and review of literature"],"prefix":"10.1002","volume":"50","author":[{"given":"Go","family":"Kobayashi","sequence":"first","affiliation":[{"name":"Department of Pathology, Kure\u2010Kyosai Hospital Federation of National Public Service Personnel Mutual Aid Associations  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naohiro","family":"Uraoka","sequence":"additional","affiliation":[{"name":"Department of Pathology, Kure\u2010Kyosai Hospital Federation of National Public Service Personnel Mutual Aid Associations  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8987-5414","authenticated-orcid":false,"given":"Kazuhiro","family":"Sentani","sequence":"additional","affiliation":[{"name":"Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences Hiroshima University  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jun","family":"Shibata","sequence":"additional","affiliation":[{"name":"Department of Pathology, Kure\u2010Kyosai Hospital Federation of National Public Service Personnel Mutual Aid Associations  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ryosuke","family":"Nobuhiro","sequence":"additional","affiliation":[{"name":"Department of Pathology, Kure\u2010Kyosai Hospital Federation of National Public Service Personnel Mutual Aid Associations  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoichi","family":"Saito","sequence":"additional","affiliation":[{"name":"Department of Pathology, Kure\u2010Kyosai Hospital Federation of National Public Service Personnel Mutual Aid Associations  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daiki","family":"Taniyama","sequence":"additional","affiliation":[{"name":"Department of Molecular Pathology, Graduate School of Biomedical and Health Sciences Hiroshima University  Hiroshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masanori","family":"Hanamoto","sequence":"additional","affiliation":[{"name":"Department of Urology, Kure\u2010Kyosai Hospital Federation of National Public Service Personnel Mutual Aid Associations  Hiroshima 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