A Case of Orbital Infarction Syndrome in Rhino-Orbitocerebral Mucormycosis

ABSTRACT

Orbital infarction syndrome is defined as ischemia of all intraorbital and intraocular structures and is a rare disorder due to rich anastomotic vascularization of the orbit. It results in orbital and ocular pain, total ophthalmoplegia, anterior and posterior segment ischemia, and acute bindness. It can occur secondary to different mechanisms such as acute perfusion failure, systemic vasculitis, orbital cellulitis and vasculitis. We experienced a case of orbital infarction syndrome in a 61-year-old nonketotic diabetic woman who had developed paranasal sinusitis by mucormycosis and presented orbital cellulitis, multiple nerve paralysis, chorioretinal ischemia, facial necrosis around orbit and acute blindness. Prompt recognition of clinical pictures and rapid diagnosis is essential for early treatment of orbital infarction due to rhino-orbitocerebral mucormycosis because its progression is very rapid and fatal.