释义 |
DictionarySeemastocytosisdiffuse cutaneous mastocytosis
mastocytosis [mas´to-si-to´sis] an accumulation, local or systemic, of mast cells in the tissues; known as urticaria pigmentosa" >urticaria pigmentosa when widespread in the skin.diffuse mastocytosis (diffuse cutaneous mastocytosis) a condition in which the entire skin is thickened, lichenified, and leathery in appearance and accompanied by generalized erythroderma and intense pruritus as a result of widespread infiltration with mast cells. In children, it is often associated with systemic mastocytosis.systemic mastocytosis a condition in which there are mast cell infiltrates in noncutaneous tissues, occurring with or without cutaneous lesions, and usually involving the liver, spleen, bone, lymph nodes, and gastrointestinal tract.dif·fuse cu·ta·ne·ous mas·to·cy·to·sisa benign process consisting of focal cutaneous infiltrates composed of mast cells; lesions are flat or slightly elevated, form wheals and itch when stroked; bone lesions may occur.dif·fuse cu·ta·ne·ous mas·to·cy·to·sis (di-fyūs' kyū-tā'nē-ŭs mas'tō-sī-tō'sis) A benign process consisting of focal cutaneous infiltrates composed of mast cells; lesions are flat or slightly elevated, form wheals, and itch when stroked; bone lesions may occur. |