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: Pediatrics
Which among the following is the most common tumour associated with neurofibromatosi(sminna) Child ? 
Select and explain. 
A. Juvenile myelomonocytic leukemia, B. Acute lymphoblastic leukemia, C. Acute monocytic leukemia, D. Acute myeloid leukemia
A: Juvenile myelomonocytic leukemia
Answer: A: Juvenile myelomonocytic leukemia 
Explanation: Ans. is 'a' i.e., Juvenile myelomonocytic leukemia "Among leukemias, Neurofibromatosis - 1 is associated with nonlymphocytic leukemia paicularly JMML and myelodysplastic syndrome". Tumors associated with NF - 1 o Leukemia o Rhabdomyosarcoma o Optic glioma o Brain tumors (Meningiomas, ependymomas, Astrocytomas) o Pheochromocytomas o Neuro-ectodermal malignancies