Mastocytosis

An unusual condition in which itchy, irregular, yellow or orangebrown swellings occur on the skin, most commonly on the trunk. Mastocytosis may also affect body organs, including the liver, spleen, and intestine, and it may cause symptoms such as diarrhoea, vomiting, and fainting. Very rarely, the condition leads to anaphylactic shock, which can be fatal. The condition usually begins in the 1st year of life and clears up by adolescence. Antihistamine drugs may be helpful in relieving symptoms of mastocytosis.