Chronic urticaria occurs in about 0.1% of the population (Greaves, 2000). Patients previously classified as having chronic idiopathic or "ordinary" urticaria are now divided into two groups ...

We still have a lot to learn about chronic idiopathic urticaria, a common and heterogeneous disorder. Most of these quiz questions are derived from recent literature and guideline updates.

“His main breakthrough was when he realized that in chronic urticaria, it doesn’t matter if it is inducible or idiopathic ... pruritus, angioedema and atopic dermatitis.

Urticarial vasculitis represents 5% to 10% of cases of chronic urticaria, characterized histologically by the presence of vasculitis on skin biopsy. Clinically it tends to last longer than ...