Dr. Mohammad Shehadeh Salam Hirbawi. Tumours. Optic nerve glioma. Slow-growing. Pilocytic astrocytoma which typically affects children. girls more often than boys. Approximately 30% of patients have associated nurofibromatposis-1 and in these patients the prognosis is better.
(c) axial CT of small tumor shows slight thickening & calcification
(d)axial T2-weighted MR in a more advanced case shows fusiform enlargement of the optic nerve & proptosis
Visual loss,optic atrophy,opticociliary shunt vessels.
However, the simultaneous occurrence of all three signs in one individual is uncommon.