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  • Title: Computed tomography in the diagnosis of retinoblastoma.
    Author: Arrigg PG, Hedges TR, Char DH.
    Journal: Br J Ophthalmol; 1983 Sep; 67(9):588-91. PubMed ID: 6882715.
    Abstract:
    The role of orbital computed tomography (CT) in the management of retinoblastoma is reviewed. All 21 patients with retinoblastoma studied with high-resolution computed tomography had intraocular calcification demonstrable in at least one eye. 83% of tumours showed evidence of calcification on CT scan. The degree of calcification appeared to depend on tumour size; only small tumours were devoid of calcification. The amount and distribution of calcification was similar on both histological study and CT scan. In patients under 3 years old in whom a retinoblastoma is suspected the presence of calcification on CT is virtually diagnostic of it. Patients with leucocoria without calcification on CT probably have a simulating lesion.
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