There was slight improvement in anemia (Hb 11.2 g/dL), a marked increase in leukocytes bordering on leukocytosis (16.9 × 103/μL), persistence of neutrophilia (11.1 × 103/μL), improvement in lymphopenia (4.9 × 103/μL), decrease in acute-phase reactants, persistent increase in fibrinogen (553 mg/dL), and a pronounced elevation of D-dimer (2988 ng/mL) (Table 1). The gene discussed is GSTM1; the disease is lymphopenia.