This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Pediatrics
Increased fetal hemoglobin is seen in: 
Select and explain. 
A. Juvenile CML, B. Congenital red cell aplasia, C. Hereditary spherocytosis, D. AML
A: Juvenile CML
Answer: A: Juvenile CML 
Explanation: a. Juvenile CML(Ref: Nelson's 20/e p 2442-2443, Ghai 8/e p 605-607)Increased hemoglobin F for age is a feature of JMML or Juvenile CML.