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MediumInfectious DiseasesCellulitis vs DVT differentiationau-racgpau-amc

A 56 year old man presents with unilateral erythematous, warm leg swelling after a minor abrasion. There is a clear portal of entry on the shin and the area is tender with lymphangitic streaking. He has no calf tenderness or risk factors for venous thromboembolism. Which diagnosis is most likely?

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