Henoch - Schönlein Purpura (HSP) Mnemonic: "10 P's"

HSP = 10 P's

PALPABLE
PURPURA
PLATELETS OK -- DDx from ITP
PRURITUS -- URTICARIA
PAIN -- ABDOMEN and LEGS
POSITIVE +guaiac -- FECES
PRESSURE -- increased blood pressure
PROTEINURIA
PREDNISONE = Tx

Related reading:

A Young Man with Henoch-Schönlein Purpura

Henoch-Schönlein Purpura - JAMA Patient Page http://goo.gl/e05qx