title: Psammomatoid ossifying fibroma of the ethmoid.
abstract: We present a 16 year-old girl who suffered since one year of a painless slow growing mass on the left medial orbital rim causing globe displacement. CT-scan and MRI of the orbit with T1 and T2 weighted images showed the presence of a large mucocoele in the frontal sinus. This occurred secondary to the obstruction of the sinonasal tract by a bony tumour. Histopathology showed a lesion consisting of fibrous tissue and ossicles or psammomatoid bodies. The diagnosis of a psammomatoid ossifying fibroma (POF) was made.
authors.affiliation: Department of Ophthalmology, Ghent University Hospital.
authors.forename: K
authors.initials: K
authors.lastname: Vandekerckhove
authors.forename: K
authors.initials: K
authors.lastname: Van den Abeele
authors.forename: C
authors.initials: C
authors.lastname: Van den Broecke
authors.forename: K
authors.initials: K
authors.lastname: Verstraete
authors.forename: F
authors.initials: F
authors.lastname: Meire
mesh_terms: D000293:Adolescent; D005004:Ethmoid Bone / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D018214:Fibroma, Ossifying / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D012888:Skull Neoplasms / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed