Pediatrics C.V.S. 3e86fd46 Increased fetal hemoglobin is seen in: A Juvenile CML B Congenital red cell aplasia C Hereditary spherocytosis D AML High-Yield 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.