Lateral Rectus Muscle Myocysticercosis Presenting as Acute Proptosis in a Child: A Case Report

Extraocular muscle cysticercosis is an uncommon cause of pediatric proptosis and may clinically mimic inflammatory orbital conditions. We present a case of a 4-year-old male child who presented with acute onset proptosis of the left eye for two days, without any history of trauma or visual impairment. Radiological evaluation revealed a well-defined cystic lesion with an eccentric hyperdense focus within the lateral rectus muscle, suggestive of myocysticercosis. The child was treated conservatively with oral albendazole and systemic corticosteroids, resulting in significant clinical improvement. Early recognition and appropriate medical management can lead to complete resolution and prevent long-term complications.