Benign osteoblastoma of the orbit.
Benign osteoblastoma is a rare lesion of the orbit--only five cases have been described previously. The usual location is in the vertebral column and to a lesser extent in the skull. Although it is an invasive lesion, recurrences have not been reported after en bloc excision. The authors report a 10-year-old boy who presented with upper lid swelling, proptosis, and hypophthalmia. A computed tomography (CT) scan showed a calcified mass in the superior orbit which had eroded through the roof, and magnetic resonance imaging (MRI) showed a well-circumscribed mass between the periorbita and dura. A transcranial approach was used to remove the tumor, and the roof reformed with polypropolene. He has been followed for 18 months without recurrence.
Leone
C R
CR
Department of Ophthalmology, University of Texas Health Science Center, San Antonio.
Lawton
A W
AW
Leone
R T
RT
D002648:Child; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009918:Orbital Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010017:Osteoma, Osteoid / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery