Vasculitis

Question 1

Deep venous thrombosis

Answer 1

Risk factors:

1. Prolonged immobility or hospitalization
2. Recent major surgery
3. Obesity
4. Malignancy
5. OCP use
6. Pregnancy
7. Drug injection (most common at iliofemoral vein = wall trauma, chemical irritation, or infection)

Clinical:

1. Unilateral leg swelling
2. Pain & warmth
3. Physical exam: dilated superficial veins & increase diameter of calf or thigh

Diagnosis:

1. Low risk: via D-Dimer
2. High risk: via Doppler US

Question 2

Acute lymphangitis

Question 3

Chronic lymphatic filariasis

Question 4

Lymphogranuloma

Question 5

Necrotizing myositis