Orbital mucormycosis is a complication of: (A) AIDS, (B) Steroid therapy, (C) Cushing's disease, (D) Diabetic ketoacidosis
Answer is D. Orbital mucormycosis is caused by Mucor and Rhizopus. The lesions are especially common in patients with diabetic ketoacidosis. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition