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: Pathology
All are true about pilocytic astrocytoma, EXCEPT: 
Select and explain. 
A. Highly malignant, B. Usually located in the cerebellum, C. Is often cystic, D. None of the above
A: Highly malignant
Answer: A: Highly malignant 
Explanation: Pilocytic astrocytomas (grade I/IV) are distinguished from the other types by their pathologic appearance and relatively benign behavior. They typically occur in children and young adults, and are usually located in the cerebellum. On macroscopic examination, a pilocytic astrocytoma is often cystic; if solid, it may be well circumscribed or, less frequently, infiltrative. Ref: Robbins 8th edition Chapter 28.