<prompt> Orbital mucormycosis is a complication ofAIDSSteroid therapyCushings diseaseDiabetic ketoacidosis  <response>: 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 