{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T05:20:06Z","timestamp":1788412806341,"version":"build-2803163510"},"reference-count":20,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2021,4,13]],"date-time":"2021-04-13T00:00:00Z","timestamp":1618272000000},"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":["Pathology International"],"published-print":{"date-parts":[[2021,6]]},"abstract":"<jats:p>Secretory carcinoma or mammary analog secretory carcinoma is an entity of salivary gland carcinoma that is characterized by the <jats:italic>ETV6\u2010NTRK3<\/jats:italic> gene fusion. Although it is generally considered to be a low\u2010grade malignancy, some cases of secretory carcinoma with high\u2010grade transformation (SCHG) have been reported. We herein describe a case of SCHG composed almost exclusively of the high\u2010grade component. The patient presented with a growing mass in the buccal mucosa and underwent surgery. Tumor cells showing high\u2010grade nuclear atypia were arranged in solid or cribriform nests with comedo\u2010like necrosis. A differential diagnosis included high\u2010grade salivary gland carcinoma, such as salivary duct carcinoma. Immunohistochemically, tumor cells were focally positive for S\u2010100 and negative for mammaglobin and showed nuclear positivity for pan\u2010Trk. A reverse transcription polymerase chain reaction assay showed that the tumor harbored the <jats:italic>ETV6\u2010NTRK3<\/jats:italic> gene fusion. A histological review of microscopic slides of the tumor did not reveal a typical secretory carcinoma component, except for a very focal area. We ultimately diagnosed this tumor as SCHG. This case underscores the importance of recognizing the histological spectrum of SCHG and the utility of pan\u2010Trk immunohistochemistry to detect secretory carcinoma, which may be targeted by tyrosine kinase inhibitors.<\/jats:p>","DOI":"10.1111\/pin.13100","type":"journal-article","created":{"date-parts":[[2021,4,14]],"date-time":"2021-04-14T06:43:39Z","timestamp":1618382619000},"page":"427-434","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["High\u2010grade salivary gland carcinoma with the ETV6\u2010NTRK3 gene fusion: A case report and literature review of secretory carcinoma with high\u2010grade transformation"],"prefix":"10.1111","volume":"71","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4800-4126","authenticated-orcid":false,"given":"Satsuki","family":"Asai","sequence":"first","affiliation":[{"name":"Department of Diagnostic Pathology Kyoto University Hospital  Kyoto Japan"},{"name":"Department of 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