title: Radiologic-Pathologic Conference of Children's Hospital Boston: intraconal mass in the orbit of an infant.
abstract: A 16-month-old boy presented with left exophthalmos. He was found to have an enhancing intraconal soft-tissue mass. The differential diagnosis of the mass is discussed. The lesion was proven to be a malignant ectomesenchymoma, a very unusual tumor.
authors.affiliation: Department of Radiology, Children's Hospital, 300 Longwood Avenue, Boston, MA 02115, USA.
authors.forename: L S
authors.initials: LS
authors.lastname: Medina
authors.forename: P D
authors.initials: PD
authors.lastname: Barnes
authors.forename: M J
authors.initials: MJ
authors.lastname: Donovan
authors.forename: G A
authors.initials: GA
authors.lastname: Taylor
mesh_terms: D003937:Diagnosis, Differential; D005094:Exophthalmos / Q000209:etiology; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D008297:Male; D008637:Mesenchymoma / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D009918:Orbital Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D014057:Tomography, X-Ray Computed