Mucormycosis

A patient with diabetic ketoacidosis who develops rapidly worsening facial pain, nasal symptoms, orbital swelling, or a dark necrotic lesion may have mucormycosis—a time-critical invasive infection, not routine sinusitis. The bedside pattern is a high-risk host plus rapidly progressive tissue injury. Mucorales invade blood vessels, so thrombosis cuts off perfusion while the mold spreads through adjacent tissue or the bloodstream. Substantial clinical suspicion warrants urgent infectious-disease and surgical evaluation and prompt treatment; waiting for a culture can allow irreversible tissue loss.