title: Juvenile ossifying fibroma: CT and MR findings.
abstract: We describe the CT findings in four patients and the MR imaging in one patient with juvenile ossifying fibroma. Three lesions involved the maxillary sinus and extended to the surrounding structures; one lesion was confined to the maxillary bone. CT scan revealed well-defined, expansile lesions with variable amount of calcifications. On MRI one lesion had intermediate signal intensity with significant contrast enhancement.
authors.affiliation: Department of Diagnostic Radiology, American University of Beirut Medical Center, P.O. Box 113-6044, Beirut, Lebanon. nk01@aub.edu.lb
authors.forename: Nabil J
authors.initials: NJ
authors.lastname: Khoury
authors.forename: Lena N
authors.initials: LN
authors.lastname: Naffaa
authors.forename: Nina S
authors.initials: NS
authors.lastname: Shabb
authors.forename: Maurice C
authors.initials: MC
authors.lastname: Haddad
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002114:Calcinosis / Q000175:diagnosis / Q000473:pathology; D002648:Child; D002669:Child Welfare; D002675:Child, Preschool; D005260:Female; D018214:Fibroma, Ossifying / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008441:Maxillary Neoplasms / Q000175:diagnosis / Q000473:pathology; D008443:Maxillary Sinus / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed