Most pediatric orbital tumor series report a low percentage of malignant lesions. A retrospective review of children aged 18 years or less admitted with the diagnosis of orbital tumor included 148 patients over a six-year period. Orbital retinoblastoma accounted for 48 cases (32% followed by vasculogenic lesions (33 cases, 22% Benign cystic lesions were the third most common (27 cases, 18% Malignant neoplasms were identified in 48% of the cases studied. Retinoblastoma may be more common in Saudi Arabia than in Western countries, and delay in presentation appears to be the major cause of secondary orbital invasion.
- Granulocytic sarcoma
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