Abstract
A rare case of eosinophilic granuloma of the orbit in a 3-year-old boy presented as right upper eyelid swelling and proptosis. Computed tomographic scanning revealed a soft-tissue dense mass in the lateral wall of the right orbit. Magnetic resonance (MR) imaging demonstrated tumor extension into the orbit, anterior and middle cranial fossae, and extracranial region. The tumor was completely removed. Histological diagnosis was eosinophilic granuloma. No evidence of recurrence was found 14 months later. MR imaging is useful for diagnosis of the lesion, and particularly for surgical management.
