A 68-year-old woman has a wound just above the medial malleolus present for 3 months. It is shallow with irregular borders, ruddy granulation and moderate to heavy exudate. The surrounding skin has brown discoloration, and the lower leg is edematous. Pedal pulses are palpable. Which etiology is most likely?
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Answer: B
Arterial insufficiency ulcer: Arterial ulcers are typically on toes or lateral foot, punched out with a pale dry base, minimal exudate and diminished or absent pulses.
Venous insufficiency ulcer: Correct. The gaiter-area location, shallow irregular shape, heavy exudate, hemosiderin staining, edema and intact pulses are classic for venous disease.
Neuropathic diabetic ulcer: Neuropathic ulcers occur on plantar pressure points such as metatarsal heads, often with callus, not on the medial lower leg.
Medical device-related injury: Device-related injuries match the shape of a device; nothing in the history suggests a device at this site.
Venous ulcers: medial gaiter area, shallow, wet, irregular, with edema and hemosiderin staining; arterial ulcers: distal, punched out, dry, pale, with absent pulses.