{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T19:40:01Z","timestamp":1756323601528,"version":"3.44.0"},"reference-count":15,"publisher":"BMJ","issue":"4","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2019,3,10]]},"published-print":{"date-parts":[[2019,4]]},"abstract":"<jats:p>Mucoepidermoid carcinoma (MEC) can be rarely found as a primarily intraosseous lesion and mistaken for other intraosseous or odontogenic pathology. A 65-year-old man had a poorly defined radiolucency distal to the left mandibular second molar root. Periapical radiographs demonstrated a minor radiolucency from 2.5\u2009years prior. An oral and maxillofacial surgeon felt the radiolucency represented periodontal disease, extracting tooth #18. The differential diagnosis of mixed radiolucent\/radio-opaque mandibular lesions includes: (1) fibro-osseous lesion, (2) odontogenic and non-odontogenic cyst, (3) infection and inflammatory lesion, or (4) benign or malignant neoplasm (odontogenic, non-odontogenic, or metastatic). Histological analysis revealed low-grade MEC. A composite resection was performed with a 1 cm margin from first molar to ascending ramus. A buccal fat pad advancement flap covered the defect with an iliac crest bone graft placed later for a resulting osseous defect. Careful examination and diagnostic work-up for odontogenic cysts should be provided as they may harbour malignant tumours.<\/jats:p>","DOI":"10.1136\/bcr-2018-224612","type":"journal-article","created":{"date-parts":[[2019,4,4]],"date-time":"2019-04-04T04:31:39Z","timestamp":1554352299000},"page":"e224612","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":7,"title":["Primary intraosseous mucoepidermoid carcinoma of the mandible: radiographic evolution and clinicopathological features"],"prefix":"10.1136","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2083-3523","authenticated-orcid":false,"given":"Nicholas B","family":"Abt","sequence":"first","affiliation":[{"name":"Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthew E","family":"Lawler","sequence":"additional","affiliation":[{"name":"Oral & Maxillofacial 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