Urticaria y angioedema

Abstract

The term urticaria refers to the presence of raised, red lesions that represent vasodilatation and edema located in the most superficial layers of the skin. Angioedema refers to a similar lesion but one that is located in the deeper layers. Although it may appear to be an easily diagnosed disease, the lesions can be confused with different diseases and it is necessary to make a differential diagnosis. It is a mast cell disease. Chronic urticaria/angioedema lasts more than six weeks and requires a study to attempt to identify the cause and underlying pathophysiology, as the prognosis and treatment response may vary depending on these parameters. The existence of a physical trigger can point to the diagnosis of inducible urticaria, but in the absence of such a trigger, it will be classified as spontaneous chronic urticaria.