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skos:definition |
MSH: A form of systemic mastocytosis (MASTOCYTOSIS, SYSTEMIC) characterized by the presence of large numbers of tissue MAST CELLS in the peripheral blood without skin lesions. It is a high-grade LEUKEMIA disease with bone marrow smear of >20% MAST CELLS, multi-organ failure and a short survival.,NCI: A variant of systemic mastocytosis with involvement of the bone marrow (20% or more mast cells) and the peripheral blood (mast cells account for 10% or more of peripheral blood white cells). (WHO, 2001)
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