URTICARIA AND ANGIOEDEMA

URTICARIA AND ANGIOEDEMA  DEFINITION Urticaria and angioedema represent the same pathophysiologic process occurring at different levels of the skin. Urticaria involves dilation of vascular structures in the superficial dermis. Angioedema originates from the deeper dermis and subcutaneous tissues. Urticaria can occur on any area of the body as well-circumscribed wheals with erythematous raised serpiginous borders