{"title":"A Case of Acinic Cell Carcinoma with SYN2::PPARG Fusion.","authors":"Grace Dimbleby, Alessandro Rettino, Sanjay Jogai, Sathish Harinayanan, Nimesh Patel, Sobana Battison, Karwan Moutasim","doi":"10.1007/s12105-024-01715-5","DOIUrl":null,"url":null,"abstract":"<p><p>Acinic cell carcinoma (ACC) is a salivary gland malignancy most commonly arising in the parotid gland. It is the second most common salivary gland carcinoma in children. It is characterised by neoplastic cells with acinar morphology arranged in variably architectural features, including solid, cystic or follicular patterns. Conventional ACC typically has a low-grade clinical pattern, whereas high grade ACC exhibits a more aggressive clinical course with distant metastasis a high mortality rate. Most ACCs are characterised by gene rearrangements in the NR4A3 gene. Here, we present a case of high grade ACC lacking NR4A3 gene translocation but harbouring a hitherto undescribed SYN2::PPARG gene fusion of uncertain clinical significance. Clinical, radiological, histological and genomic features of the case are discussed alongside a brief review of the literature.</p>","PeriodicalId":47972,"journal":{"name":"Head & Neck Pathology","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11486882/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Head & Neck Pathology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s12105-024-01715-5","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PATHOLOGY","Score":null,"Total":0}
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Abstract
Acinic cell carcinoma (ACC) is a salivary gland malignancy most commonly arising in the parotid gland. It is the second most common salivary gland carcinoma in children. It is characterised by neoplastic cells with acinar morphology arranged in variably architectural features, including solid, cystic or follicular patterns. Conventional ACC typically has a low-grade clinical pattern, whereas high grade ACC exhibits a more aggressive clinical course with distant metastasis a high mortality rate. Most ACCs are characterised by gene rearrangements in the NR4A3 gene. Here, we present a case of high grade ACC lacking NR4A3 gene translocation but harbouring a hitherto undescribed SYN2::PPARG gene fusion of uncertain clinical significance. Clinical, radiological, histological and genomic features of the case are discussed alongside a brief review of the literature.
期刊介绍：
Head & Neck Pathology presents scholarly papers, reviews and symposia that cover the spectrum of human surgical pathology within the anatomic zones of the oral cavity, sinonasal tract, larynx, hypopharynx, salivary gland, ear and temporal bone, and neck.
The journal publishes rapid developments in new diagnostic criteria, intraoperative consultation, immunohistochemical studies, molecular techniques, genetic analyses, diagnostic aids, experimental pathology, cytology, radiographic imaging, and application of uniform terminology to allow practitioners to continue to maintain and expand their knowledge in the subspecialty of head and neck pathology. Coverage of practical application to daily clinical practice is supported with proceedings and symposia from international societies and academies devoted to this field.
Single-blind peer review
The journal follows a single-blind review procedure, where the reviewers are aware of the names and affiliations of the authors, but the reviewer reports provided to authors are anonymous. Single-blind peer review is the traditional model of peer review that many reviewers are comfortable with, and it facilitates a dispassionate critique of a manuscript.
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