This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Which of the following is not a feature of juvenile CML? 
Select and explain. 
A. Thrombocytopenia, B. Lymphadenopathy, C. Presence of Philedelphia chromosome, D. High HbF
C: Presence of Philedelphia chromosome
Answer: C: Presence of Philedelphia chromosome 
Explanation: Philedelphia chromosome positivity is a feature of adult CML. Juvenile CML is commonly seen in children between 1-2 years of age. It is characterised by enlarged lymphnodes, spleen and liver. Lab findings includes thrombocytopenia, leukocyte count lower than classic CML, and in increase in propoion of fetal hemoglobin.