[Heterogeneous group of disorders characterized by a vasculitic syndrome presumed to be associated with a hypersensitivity reaction following exposure to an antigen such as an infectious agent, a drug, or other foreign or endogenous substance (Wilson et al, Harrison's Principles of Internal Medicine, 12th ed, p1459). ( MSH )]
UMLS (ICD9CM) C0151436 Relation/PAR: immune complex disease
angiitis
Relation/CHD: ALLERGIC PURPURA
Allergic Cutaneous Angiitis