Snapshot A 50-year-old man is brought to the emergency room via ambulance from a fire. He has extensive burns over his arms, torso, and legs. His past medical history is significant for uncontrolled diabetes. On exam, he has periorbital swelling and rhinorrhea. There is a black eschar over his nares and palate. A CT of his sinuses show air fluid levels in his maxillary and frontal sinuses. Biopsy of the black eschar reveals nonseptate hyphae branching at wide angles. Introduction Classification login to view 4 more bullets Epidemiology Risk factors login to view 7 more bullets ETIOLOGY Pathogenesis login to view 3 more bullets Presentation Symptoms login to view 4 more bullets Physical exam login to view 8 more bullets Imaging Computed tomography (CT) head/sinuses login to view 6 more bullets Studies Labs login to view 1 more bullet Biopsy of affected tissue login to view 1 more bullet Making the diagnosis login to view 2 more bullets Differential Bacterial sinusitis login to view 2 more bullets Treatment Medical login to view 6 more bullets Operative login to view 4 more bullets Complications Death Prognosis High mortality Rapidly progressive