A 61-year-old man comes to the physician for a 3-month history of progressive fatigue and early satiety. Physical examination shows painless cervical and axillary lymphadenopathy. The spleen is palpable. Laboratory studies show a hemoglobin level of 10 g/dL, platelet count of 120,000/μL, and leukocyte count of 75,000/μL (85% lymphocytes). A blood smear is shown.
Which of the following is most likely to be seen in this patient?
A) Anti-erythrocyte IgG antibodies
B) Auer rods
C) Blasts at 30%
D) CD10 and TdT positivity
E) Fusion protein
