Orbital computed tomography. Does it help in diagnosing the infiltration of choroid, sclera and/or optic nerve in retinoblastoma?
High-resolution computerized tomography of the orbit was performed in patients with histologically proven retinoblastoma to assess the efficacy of CT in delineating the retro-orbital extent of the tumor and determining if the optical nerve was involved. High-resolution CT proved able to accurately delineate tumor size, tumor localization, tumor calcification, retro-orbital and intracranial tumor growth. Microscopical tumor spread past the lamina cribrosa of the optic nerve, however, could not be detected by CT.
John-Mikolajewski
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V
Department of Radiology and Ophthalmology, University of Essen, FRG.
Messmer
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E
Sauerwein
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W
Freundlieb
O
O
D002648:Child; D002675:Child, Preschool; D002829:Choroid / Q000000981:diagnostic imaging*; D005134:Eye Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D009900:Optic Nerve / Q000000981:diagnostic imaging*; D009915:Orbit / Q000000981:diagnostic imaging; D009918:Orbital Neoplasms / Q000000981:diagnostic imaging; D012175:Retinoblastoma / Q000000981:diagnostic imaging*; D012590:Sclera / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed