Rhino-Orbital-Cerebral Mucormycosis: A Fatal Complication of Uncontrolled Diabetes Mellitus.

Mucormycosis is a progressively invasive disease, with a fatal outcome, on late presentation. A 38-year-old female presented with diabetic ketoacidosis with right eye ptosis and a frozen globe without any signs of inflammation, externally. She underwent transnasal endoscopic debridement of paranasal sinuses and exenteration of the right eye. The histopathology specimen revealed the growth of mucormycosis. She was treated with intravenous (IV) amphotericin B, IV insulin, and extensive debridement surgery, but had an unfavorable outcome due to rapid mucor invasion to the brain.