This question is aimed at final year med students and intern | Figure 1

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This question is aimed at final year med students and interns:

58 year old man came in with painful swelling on left lower leg for 3 days. History of fall with abrasion a week back. Patient is a known diabetic on metformin. He walks in to an outpatient clinic.

1. What do you check for on examination.
2. What investigations will you order?
3. What treatment/procedure(s) will you undertake?

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