This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc. (R.B.C), Subject name: Pathology
Aplastic anemia can progress to all except: 
Select and explain. 
A. AML, B. Myelodysplastic anemia, C. Pure red cell aplasia, D. Paroxysmal nocturnal hemoglobinuria
C: Pure red cell aplasia
Answer: C: Pure red cell aplasia 
Explanation: Ans. (c) Pure red cell aplasia(Ref: Robbins 9th/pg 653-655)Aplastic anemia can progress toAMLMyelodysplastic anemiaParoxysmal nocturnal hemoglobinuriaAplastic anemia cannot progress to Pure red cell aplasia