title: Intraosseous mucoepidermoid carcinoma: a review of the diagnostic imaging features of four jaw cases.
abstract: The purpose of this case series is to present the common features of intraosseous mucoepidermoid carcinoma (IMC) of the jaws in plain film and CT imaging. Two oral and maxillofacial radiologists reviewed and characterized the common features of four biopsy-proven cases of IMC in the jaws in plain film and CT imaging obtained from the files of the Department of Oral Radiology, Faculty of Dentistry, University of Toronto, Toronto, Canada. The common features are a well-defined sclerotic periphery, the presence of internal amorphous sclerotic bone and numerous small loculations, lack of septae bordering many of the loculations, and expansion and perforation of the outer cortical plate with extension into surrounding soft tissue. Other characteristics include tooth displacement and root resorption. The four cases of IMC reviewed have common imaging characteristics. All cases share some diagnostic imaging features with other multilocular-appearing entities of the jaws. However, the presence of amorphous sclerotic bone and malignant characteristics can be useful in the differential diagnosis.
authors.affiliation: Department of Oral Radiology, University of Toronto, Toronto, Ontario, Canada. kingchong.chan@dentistry.utoronto.ca
authors.forename: K C
authors.initials: KC
authors.lastname: Chan
authors.forename: M
authors.initials: M
authors.lastname: Pharoah
authors.forename: L
authors.initials: L
authors.lastname: Lee
authors.forename: I
authors.initials: I
authors.lastname: Weinreb
authors.forename: B
authors.initials: B
authors.lastname: Perez-Ordonez
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy; D018277:Carcinoma, Mucoepidermoid / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008339:Mandibular Neoplasms / Q000000981:diagnostic imaging*; D008441:Maxillary Neoplasms / Q000000981:diagnostic imaging*; D008875:Middle Aged; D010014:Osteolysis / Q000000981:diagnostic imaging; D010026:Osteosclerosis / Q000000981:diagnostic imaging; D016300:Radiography, Bitewing; D011862:Radiography, Panoramic; D012189:Retrospective Studies; D012391:Root Resorption / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods; D014070:Tooth / Q000000981:diagnostic imaging