Cold urticaria

Hives on the back from exposure to cold air on an individual with cold allergy. The hives were induced by riding a stationary bike shirtless for an hour next to a door cracked open on a cool day. The temperature of the air flowing in was around 10C (50F). The lighter band at chest height was covered by a heart rate monitor strap.

Cold urticaria (essentially meaning "cold hives") is an allergy where hives (urticaria) or large red welts form on the skin after exposure to a cold stimulus. The welts are usually itchy and often the hands and feet will become itchy and swollen as well. Hives vary in size from about 7mm in diameter to as big as about 27mm diameter or larger. The disease is classified as chronic when hives appear for longer than 6 weeks; they can last for life, though their course is often unpredictable. This disorder, or perhaps two disorders with the same clinical manifestations, can be inherited (familial cold urticaria) or acquired (primary acquired cold urticaria). The acquired form is most likely to occur between ages 18–25, although it can occur as early as 5 years old in some cases.

单词	Cold urticaria
释义	Cold urticaria 英语例句库 In most cases of chronic urticaria, an underlying trigger is not found. Hodgkin's disease may be accompanied by urticaria. Cold urticaria with cryoglobulinemia is seen in multiple myeloma. 在大多数慢性荨麻疹患者，找不到触发原因。霍杰金氏病可伴有荨麻疹；冷球蛋白血症引起的荨麻疹见于多发性骨髓瘤。英语百科 Cold urticaria Cold urticaria (essentially meaning "cold hives") is an allergy where hives (urticaria) or large red welts form on the skin after exposure to a cold stimulus. The welts are usually itchy and often the hands and feet will become itchy and swollen as well. Hives vary in size from about 7mm in diameter to as big as about 27mm diameter or larger. The disease is classified as chronic when hives appear for longer than 6 weeks; they can last for life, though their course is often unpredictable. This disorder, or perhaps two disorders with the same clinical manifestations, can be inherited (familial cold urticaria) or acquired (primary acquired cold urticaria). The acquired form is most likely to occur between ages 18–25, although it can occur as early as 5 years old in some cases.
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