Abstract
Objective This study aimed to determine the radiographic characteristics of odontogenic myxomas (OMs) and their associations. Materials and Methods The study enrolled radiographs of patients taken between 2005 and 2019 with a confirmed histopathological diagnosis of central OM. OM radiographic features were evaluated, including location, border, locularity, involved area, the number of included teeth, root resorption, tooth displacement, bone expansion, bone perforation, and periosteal reaction. Fisher's exact test was used for statistical analysis. Results Significant associations were found between the OM border and the affected jaw (p=0.036), locularity (p=0.036), involved areas (p=0.009), and bone perforation (p=0.036). OMs with an ill-defined border were associated with maxillary lesions, multilocularity, dentate areas, and cortical bone perforation. The number of included teeth (2 or fewer or 3 or more) was significantly associated with locularity (p=0.010), involved area (p=0.045), and bone expansion (p=0.010). Larger OMs including 3 or more teeth, were associated with a multilocular appearance, dentate areas, and bone expansion. Conclusion The border of OM and the number of included teeth are related to other radiographic appearances. Understanding these relationships could help in treatment decisions and help better understand the nature of OM.
Highlights
Introduction e World HealthOrganization classified odontogenic myxoma (OM) as a benign mesenchymal odontogenic tumor in 2017 [1]
OMs exhibit simple to aggressive radiographic manifestations: from a unilocular lesion at the periapical area or surrounding an unerupted tooth [9, 14] to a multilocular lesion mimicking ameloblastoma or odontogenic keratocyst [15], and including a sunburst appearance similar to osteosarcoma [16, 17]. ey may displace teeth and cause root resorption. ese various radiographic manifestations can lead to an initial misdiagnosis in patients with OM. e current study aimed to evaluate the radiographic characteristics of OM and the interrelationships among them
Among the 658 patients with odontogenic tumors who presented at the Department of Oral and Maxillofacial Pathology over the 15 year study period, 15 (2.3%) had OMs, and 13 (2%) had central OMs. e study included 12 patients who had both panoramic images and occlusal cross-sectional, cone beam computed tomography (CBCT) or multidetector computed tomography (MDCT) images
Summary
Organization classified odontogenic myxoma (OM) as a benign mesenchymal odontogenic tumor in 2017 [1]. It is rare, with a reported annual incidence of 0.07 per million [2], constituting approximately 1.9%– 6.3% of all odontogenic tumors [3,4,5]. OMs exhibit simple to aggressive radiographic manifestations: from a unilocular lesion at the periapical area or surrounding an unerupted tooth [9, 14] to a multilocular lesion mimicking ameloblastoma or odontogenic keratocyst [15], and including a sunburst appearance similar to osteosarcoma [16, 17]. Ese various radiographic manifestations can lead to an initial misdiagnosis in patients with OM. OMs exhibit simple to aggressive radiographic manifestations: from a unilocular lesion at the periapical area or surrounding an unerupted tooth [9, 14] to a multilocular lesion mimicking ameloblastoma or odontogenic keratocyst [15], and including a sunburst appearance similar to osteosarcoma [16, 17]. ey may displace teeth and cause root resorption. ese various radiographic manifestations can lead to an initial misdiagnosis in patients with OM. e current study aimed to evaluate the radiographic characteristics of OM and the interrelationships among them
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