To differentiate between prurigo nodularis (PN) and peripheral arterial disease (PAD), it's important to understand their distinct characteristics:
Prurigo Nodularis (PN)
- Symptoms:
- Intense itching (chronic pruritus)
- Nodules, lesions, or papules on the skin
- Commonly affects arms, legs, back, and abdomen
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To differentiate between prurigo nodularis (PN) and peripheral arterial disease (PAD), it's important to understand their distinct characteristics:
Prurigo Nodularis (PN):
- Symptoms:
- Intense itching (chronic pruritus)
- Nodules, lesions, or papules on the skin
- Commonly affects arms, legs, back, and abdomen
- Skin thickening, lichenification, and scarring
- Burning or crawling sensation
Peripheral Arterial Disease (PAD):
- Symptoms:
- Painful cramping in hips, thighs, or calf muscles after activity
- Leg numbness or weakness
- Coldness in lower leg or foot
- Sores on toes, feet, or legs that won't heal
- Change in leg color or shiny skin on legs
Diagnostic Approach:
- PN:
- Physical exam to check for nodules and lesions
- Dermoscopy to closely examine the skin
- Blood tests to rule out other conditions
- Skin biopsy to look at cells under a microscope
- PAD:
- Ankle-brachial index (ABI) to compare blood pressure in ankle and arm
- Ultrasound to view blood flow in arteries
- Angiography to see blood flow in arteries
- Blood tests to check for risk factors like cholesterol and diabetes
If you suspect either condition, consult a healthcare provider for a proper diagnosis and treatment plan.
November 14