Acquired vascular purpura

Definition

Purpura resulting from vascular factors rather than from abnormalities in the blood such as dysproteinaemias and disorders of platelets and coagulation.

Exclusions

• Antineutrophil cytoplasmic antibody-associated vasculitis
• Antiphospholipid syndrome
• Capillaritis
• Drug-associated immune complex vasculitis
• IgA vasculitis
• Leukocytoclastic vasculitis
• Purpura or bruising due to vascular fragility
• Thrombotic thrombocytopenic purpura
• Traumatic purpura

Index Terms