Hypersensitivity Angiitis: Causes, Symptoms, and Treatment
1. Introduction Hypersensitivity angiitis, clinically recognized in modern dermatology and rheumatology as cutaneous small-vessel vasculitis or leukocytoclastic vasculitis, is an acute inflammatory disorder affecting the microscopic blood vessels of the skin. This condition represents a dramatic, aberrant response of the immune system to an external trigger, most frequently a pharmacological agent, an infectious pathogen, or … Read more