urticaria
81allergic contact urticaria — a type of contact urticaria seen as part of allergic contact dermatitis, particularly in children …
82aquagenic urticaria — contact urticaria caused by contact with water or sweat. In some persons this is from an urticariogenic substance dissolved in the sweat; it was formerly thought to be in the sebum, but now it appears to be an antigen from the stratum corneum …
83cold urticaria — a type of physical urticaria precipitated by cold air, water, or objects, with wheals appearing on cold exposed areas when they have been rewarmed; lesions are erythematous, burning papules and macules. There are two types: The more common… …
84colonic urticaria — a pattern of the mucosal surface of the colon resembling urticaria of the skin, seen radiographically; the mucosa is lifted up owing to edema and has a characteristic mosaic pattern …
85contact urticaria — a type of immune mediated urticaria that is a form of allergic reaction, consisting of a localized or generalized, transient wheal and flare reaction after exposure to the causative substance. See also contact dermatitis …
86dermatographic urticaria — dermographic urticaria dermographism …
87drug-induced urticaria — a type of immune mediated urticaria in reaction to a medication; see also drug eruption, under eruption. Called also u. medicamentosa …
88exercise urticaria — cholinergic urticaria caused by strenuous physical exercise …
89heat urticaria — cholinergic urticaria produced by application of heat to the skin or by exposure to high environmental temperature; it may be associated with cramps, weakness, flushing, salivation, and collapse …
90immune-mediated urticaria — acute urticaria that is an immune response to antigenic stimulation …
