Clinical features of HSP

Clinical features of HSP

Clinical Manifestations of Henoch–Schonlein PurpuraAdapted from Cassidy JE et al: Textbook of pediatric rheumatology, ed 6, Philadelphia 2011, WB Saunders.

% At Onset% Post OnsetNotes
Purpura50–100100Normal platelet count
Edema10–2020–50Painful, scrotal edema (13%)
Arthritis25–7060–85Large joints
GI3085Volvulus (<1%), ileal infarction
Renal1540–50Renal failure (2%)
GU212–16Differential is testicular torsion
Pulmonary?5 (by DLCO)Abnormal CO diffusion
Hemorrhage?RareFatal
CNS?Very rareHeadache, encephalitis, seizures

CNS, central nervous system; DLCO, carbon monoxide diffusing capacity; GI, gastrointestinal; GU, genitourinary.

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