29th July 2023

A 56-year-old man with a background of type 2 diabetes mellitus presents with an area of erythema extending from his right calf to upper thigh.

A 56-year-old man with a background of type 2 diabetes mellitus presents with an area of erythema extending from his right calf to upper thigh. He states the erythema started around a scratch he developed on his calf whilst gardening the day before. On examination, the area of erythema is swollen and extremely tender and warm to the touch. Observations: T 38.3ᵒC, RR 20/min, HR 110 bpm, BP 92/53 mmHg, SpO₂ 94% on air.

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