URTICARIA pigmentosa, a chronic benign cutaneous disorder occurring at all ages, is characterized clinically by pigmented macules, papules or, rarely, nodules, and microscopically by an increased ...

The predominant presentation of this mast-cell disorder is development of pruritic lesions—especially after rubbing or exposure to heat. A 2-year-old girl presented with a history of several brown ...

Pressure urticaria is a form of hives. It develops several hours after applying sustained pressure to the skin, causing painful swelling. Treatment combines pressure avoidance with medications such as ...

Thanks for your advice on the 24/8/02. What you have mentioned here has been more than has been explained to me before. Could you perhaps recommend anything else in this regard because it is very ...

The cause of dermographic urticaria is unknown, but appears to be related to a mast cell abnormality and is probably autoimmune in nature. Due to a recent illness, I developed dermographism.

A 13-year-old, previously healthy, boy presented to the emergency department with a 1-week history of progressive, highly pruritic urticarial erythematous papules and confluent plaques in a symmetric, ...