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This study investigated the prognostic significance of ITB in high-grade serous ovarian carcinomas (HGSOCs). The medical records and slides of 84 SOCs, including 13 with neoadjuvant chemotherapy (NAC), were retrospectively reviewed. The histopathologic examination with scoring of p53 expression showed them to be 80 HGSOCs and 4 low-grade serous ovarian carcinomas (LGSOCs). ITB was found in 64 (80.0%) of the 80 HGSOCs and 1 (25.0%) of 4 LGSOCs. The presence of ITB in HGSOC was significantly correlated with a higher level of CA125, an advanced 2014 FIGO stage, the presence of Lymph node metastasis, and the presence of lymphovascular space invasion (LVSI). The median progression-free survival (PFS) was 18\u00a0months in patients with HGSOC with ITB and 36\u00a0months in patients with HGSOC without ITB (P\u2009=\u20090.006), and their median overall survival (OS) was 50\u00a0months and 60\u00a0months (P\u2009=\u20090.060). The multivariate analysis revealed that ITB was not an independent prognostic factor. ITB is a cost-effective prognostic indicator for patients with HGSOC and ITB in ovarian tumor tissue is considered a useful histological biomarker of the progression of HGSOCs.<\/jats:p>","DOI":"10.1038\/s41598-022-07269-2","type":"journal-article","created":{"date-parts":[[2022,2,24]],"date-time":"2022-02-24T11:02:48Z","timestamp":1645700568000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Prognostic significance of intra-tumoral budding in high-grade serous ovarian carcinomas"],"prefix":"10.1038","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2888-2538","authenticated-orcid":false,"given":"Toru","family":"Hachisuga","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4779-535X","authenticated-orcid":false,"given":"Midori","family":"Murakami","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6868-0327","authenticated-orcid":false,"given":"Hiroshi","family":"Harada","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3411-3030","authenticated-orcid":false,"given":"Taeko","family":"Ueda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3877-7520","authenticated-orcid":false,"given":"Tomoko","family":"Kurita","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3195-3782","authenticated-orcid":false,"given":"Seiji","family":"Kagami","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5732-5215","authenticated-orcid":false,"given":"Kiyoshi","family":"Yoshino","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4914-0787","authenticated-orcid":false,"given":"Ryosuke","family":"Tajiri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6593-5040","authenticated-orcid":false,"given":"Masanori","family":"Hisaoka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,2,24]]},"reference":[{"key":"7269_CR1","doi-asserted-by":"publisher","first-page":"893","DOI":"10.1002\/(sici)1097-0142(19980301)82:5<893::aid-cncr14>3.0.co;2-w","volume":"82","author":"Y Shimizu","year":"1998","unstructured":"Shimizu, Y., Kamoi, S., Amada, S., Akiyama, F. & Silverberg, S. 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