title: [Frontoethmoidal sinus mucocele as a rare finding in a patient with craniofacial fibrous dysplasia].
abstract: Fibrous dysplasia is a benign developmental skeletal disorder characterized by bony expansion secondary to replacement of the medullary cavity by fibroosseous connective tissue. A 16-year-old male patient underwent magnetic resonance imaging for headache, left proptosis, and a thrill over the left temporal artery. T1- and T2-weighted images showed extensive bone involvement of typical low signal intensity in the left hemicalvarium, skull base, and facial bones. Another striking finding was the presence of a frontoethmoidal sinus mucocele, which demonstrated high signal intensity both on T1- and T2-weighted images. The diagnosis was made as fibrous dysplasia after bone biopsy and histopathological evaluation.
authors.affiliation: Department of Radiology, Sişli Etfal Training and Research Hospital, Istanbul, Turkey. halefoglu@hotmail.com
authors.forename: Ahmet Mesrur
authors.initials: AM
authors.lastname: Halefoğlu
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005094:Exophthalmos / Q000209:etiology; D005357:Fibrous Dysplasia of Bone / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D006261:Headache / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009078:Mucocele / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D010254:Paranasal Sinus Diseases / Q000150:complications / Q000175:diagnosis* / Q000473:pathology