Sean Klepper M.D.
Artur Zembowicz M.D....
- Pruritic wheals resulting from a variety of causes, most commonly alergic, but also cold, sun exposure, pressure or exercise
- Chronic urticaria are most often idiopathic
- Dermal edema
- Vascular dilatation and endothelial swelling
- Scant perivascular infiltrate of lymphocytes, eosinophils and neutrophils
- Interstitial neutrophils and mast cells