A 68-year-old man presented with a history of several months of weakness and weight loss, and was found to be pancytopenic (WBC = 2.02 K/μL, hemoglobin = 8.1 g/dL, hematocrit… Click to show full abstract
A 68-year-old man presented with a history of several months of weakness and weight loss, and was found to be pancytopenic (WBC = 2.02 K/μL, hemoglobin = 8.1 g/dL, hematocrit = 24.4%, platelet count = 23 K/μL). Bone marrow aspiration and biopsy revealed the presence of 45% minimally differentiated blasts with scant, agranular cytoplasm (Image 1A) with coarse, granular, block-like periodic acid-Schiff (PAS) positivity (Image 1B), raising the possibility of acute lymphoblastic leukemia. Flow cytometric analysis revealed that the blasts, gated based
               
Click one of the above tabs to view related content.