A 7-Year-Old Boy Is Brought to the Office Due to Easy

A 7-year-old boy is brought to the office due to easy bruising and frequent epistaxis for 2 weeks.  Temperature is 36.7 C (98 F) , blood pressure is 106/60 mm Hg, pulse is 94/min, and respirations are 18/min.  Examination shows pale lips with mucositis in the oropharynx.  The neck is supple.  The abdomen is soft, and pulses are 2+.  Laboratory results are as follows: Findings from a bone marrow biopsy are shown in the image below: Which of the following is the most likely diagnosis?

A) Acute lymphoblastic leukemia
B) Aplastic anemia
C) Myelodysplastic syndrome
D) Myelofibrosis
E) Parvovirus B19 infection

Correct Answer:

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