title: Radiologic features of benign pleomorphic adenoma of the hard palate.
abstract: The clinical and radiographic features of two cases of pleomorphic adenoma are discussed. With the use of hypocycloidal tomography, definitive radiographic signs of benignity are demonstrated. They include (1) a radiolucent defect with well-defined cortical margins; (2) beveled margins which describe an intraoral origin of the neoplasm; (3) confinement of the neoplasm within the actual osseous defect, or within the projected circumferential diameter of the defect, if complete erosion has occurred; and (4) lack of periosteal reaction or osseous involvement of the hard palate adjacent to the radiolucent defect.
mesh_terms: D008949:Adenoma, Pleomorphic / Q000000981:diagnostic imaging* / Q000601:surgery; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D010157:Palatal Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D014056:Tomography, X-Ray