Hematologic Malignancies USMLE Step 1 Practice Question
A 6-year-old boy is brought to the physician because of fatigue, fever, and leg pain for 3 weeks. Examination shows pallor, cervical lymphadenopathy, and hepatosplenomegaly. Laboratory studies reveal anemia, thrombocytopenia, and leukocytosis. Bone marrow biopsy shows lymphoblasts that are TdT positive and CD10 positive. Which of the following is the most likely diagnosis?
Answer choices
- AHairy cell leukemia
- BAcute lymphoblastic leukemiaCorrect answer
- CAcute myeloid leukemia
- DBurkitt lymphoma
- EChronic lymphocytic leukemia
- FLymphoblastic lymphoma
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