Keywords: CBC, Complete Blood Count; CML, Chronic Myelogenous Leukemia; CMP, Comprehensive Metabolic Panel; CSU, Chronic Spontaneous Urticaria; RTK, Receptor Tyrosine Kinase; SM, Systemic Mastocytosis; TK, Tyrosine Kinase; TKI, Tyrosine Kinase Inhibitor; c-Kit; chronic myelogenous leukemia; chronic spontaneous urticaria; chronic urticaria; imatinib; malignancy; mast cell; receptor tyrosine kinases.