TABLE 5.

CLINICAL FEATURES OF MICROSCOPIC POLYANGIITIS

Clinical Manifestations	Frequency (%)
Rapidly progressive glomerulonephritis	100
Pulmonary (hemorrhage, hemoptysis)	10–30
Constitutional symptoms (fever, chills, weight loss, arthralgias/myalgias)	70–80
Cutaneous (purpura, urticaria, subcutaneous nodules, exanthem)	50–65
Nervous system (mononeuritis muliplex)	15–50
GI (pain, GI bleeding, infarction, perforation)	30–45
Ocular (conjunctivitis, uveitis)	0–30
Cardiac	10–20
Upper airway	0–15

Definition of abbreviation: GI = gastrointestinal.