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Generalista

Male, 61 years old. Previous stroke, right hemiplegia. Smoker, pulmonary emphysema. Patient does not take any medications (discontinued medications). Patient has no medical follow-up. Patient refuses to go to the doctor. Right lower limb: edema, erythema, nodules, painless, bleeding areas and mild local heat for more than 9 months. Left lower limb: mild edema, erythema, painless and mild local heat for more than 9 months. What are the differential diagnoses?