Henoch-Schönlein Purpura (HSP)

HSP is a systemic small vessel vasculitis. It is commonly identified by the characteristic palpable purpuric rash of the lower extremities. However, there is often renal involvement, arthralgias and abdominal pain. It is most common in children 4-7 years of age.

HSP is usually self-limited, does not require treatment, and can be followed as an outpatient. Significant abdominal pain and GI bleeding are indications for admission and may require administration of corticosteroids.

Complications of HSP include: nephrotic syndrome, chronic glomerulonephritis, bowel perforation, intussusception, GI bleed, obstruction, acute scrotal swelling, pulmonary hemorrhage, hypertensive encephalopathy, seizures, coma, and paresis.