Traumatic fat necrosis
Six-month history of previous trauma to the leg with persistent swelling.
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Fat necrosis of the distal leg with a localized area of fluid density seen at the trauma site and multiple central areas of fat densities. Intact skin, muscles, and bones.
A patient with trauma to the anteromedial surface of the leg six months ago with persistent swelling received antibiotic therapy for possible cellulitis with minimal improvement. CT demonstrates abnormal changes within the subcutaneous fat with cellulitis being the first possible cause, however, the persistence of chronic symptoms with the poor response to antimicrobial therapy raised the possibility of post-traumatic fat necrosis.