mastocytoma (MAS-toh-sy-TOH-muh) is a growth or lump of mast cells (a type of white blood cell). Mast cell tumors can involve the skin, subcutaneous tissue, and muscle tissue. Also called mast cell tumor.
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'''Mastocytoma''' (MAS-toh-sy-TOH-muh) is a growth or lump of mast cells (a type of white blood cell). Mast cell tumors can involve the skin, subcutaneous tissue, and muscle tissue. Also called mast cell tumor.