A 48-year-old man who works as an accountant complains of weakness,
fatigue, and bleeding from the gums when he brushes his teeth. A complete
blood count shows severe pancytopenia with white blood cells (WBC)
1000/mm3, hemoglobin (Hgb) 8 g/dL, hematocrit (Hct) 24 percent, mean corpuscular
volume (MCV) 10 fL, and platelets 30,000/mm3. Bone marrow biopsy shows:
Answer is .... tell u later...