Case Details

• Associated with urticaria, bronchospasm or hypotension

Examples

• Allergic reactions (peanuts, shrimp, latex, insect stings)
• Direct mast cell stimulation (NSAIDs, radiocontrast media, opioids)

• No urticaria or pruritis

Examples

• ACE inhibitors
• DPP-4 inhibitors (gliptins)
• Hereditary and acquired angioedema due to C1 inhibitor deficiency
• Acquired C1 inhibitor deficiency associated with SLE, lymphoma or MGUS
• Hereditary angioedema with normal C1 inhibitor

• No identifiable underlying cause