title: Orbital apex syndrome secondary to sickle cell anemia.
mesh_terms: D000293:Adolescent; D000755:Anemia, Sickle Cell / Q000150:complications* / Q000628:therapy; D001803:Blood Transfusion; D006801:Humans; D008297:Male; D009886:Ophthalmoplegia / Q000209:etiology*; D013577:Syndrome; D014786:Vision Disorders / Q000209:etiology