摘要:Mastocytosisis a rare disorder of functionally defective mast cells. Infiltration of this functionally defective mast cells and CD34 mast cell precursors in various organ leads to clinical manifestation. Skin is the most common affected organ. In systemic mastocytosis along with skin, internal organs such as the liver, spleen, bone marrow, small intestines and eye also involve. Diagnosis is done on the basis of WHO diagnostic criteria. Here we presenting this rare entity presented to us with features of chronic liver disease, proptosis and itchy hyperpigmented skin lesion diagnosed as systemic mastocytosis.