{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T06:40:06Z","timestamp":1756363206030,"version":"3.44.0"},"reference-count":26,"publisher":"BMJ","issue":"4","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2025,4,19]]},"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:p>There have been only 24 documented occurrences of the extremely uncommon giant cell tumour of the parotid gland. We report an additional case of a female patient in her late 40s who presented with a 2.5-year history of right-sided face swelling in the preauricular region. Fine-needle aspiration suggested the possibility of a primary giant cell tumour of the parotid, which was confirmed by histopathology, revealing a biphasic population of mononuclear stromal cells and osteoclast-like giant cells. There was no metastatic lesion in the cervical lymph node. No associated carcinomatous component was found. Immunohistochemistry was positive for haematopoietic, monocytic-lineage and mesenchymal markers while it was negative for epithelial and myoepithelial markers.<\/jats:p>","DOI":"10.1136\/bcr-2024-261751","type":"journal-article","created":{"date-parts":[[2025,4,26]],"date-time":"2025-04-26T09:55:15Z","timestamp":1745661315000},"page":"e261751","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Giant cell tumour of the parotid gland: a rare, unusual entity"],"prefix":"10.1136","volume":"18","author":[{"given":"Erna","family":"Ahsan","sequence":"first","affiliation":[{"name":"Pathology and Lab Medicine, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3263-7204","authenticated-orcid":false,"given":"Kranthi Kumar","family":"Jandrasupalli","sequence":"additional","affiliation":[{"name":"Pathology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8430-0216","authenticated-orcid":false,"given":"Prashant","family":"Durgapal","sequence":"additional","affiliation":[{"name":"Pathology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Divya","family":"Yadav","sequence":"additional","affiliation":[{"name":"Pathology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2025,4,26]]},"reference":[{"key":"2025082723112389000_18.4.e261751.1","doi-asserted-by":"crossref","first-page":"1778","DOI":"10.1016\/j.jcms.2014.06.014","article-title":"Giant cell tumour of a temporomandibular joint presenting as a parotid mass: case report and analysis of the 19 cases in the literature","volume":"42","author":"Huang","year":"2014","journal-title":"J Craniomaxillofac Surg"},{"key":"2025082723112389000_18.4.e261751.2","unstructured":"Giant cell tumor of soft tissue. 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