Anemias USMLE Step 1 Practice Question
A 28 year old woman presents with fatigue, frequent nosebleeds, and recurrent infections. She recently completed chloramphenicol therapy abroad. Examination shows scattered petechiae but no lymphadenopathy or splenomegaly. Laboratory studies reveal pancytopenia and a very low reticulocyte count. Bone marrow biopsy shows marked hypocellularity with fatty replacement. Which of the following is the most likely diagnosis?
Answer choices
- AAcute myeloid leukemia
- BAplastic anemiaCorrect answer
- CParoxysmal nocturnal hemoglobinuria
- DMultiple myeloma
- EMyelofibrosis
- FMegaloblastic anemia
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