There are many differences and this would take a considerable amount of time to discuss this in detail. We will briefly mention a few of the important ideas. Low grade brain tumors, including pilocytic astrocytomas, DNETs, gangliogliomas, are more common in children then adults. These tumors can be cured by simply taking the whole tumor out in most cases. These tumors do not turn into higher grade tumors with time. In contrast, most low grade gliomas in adults are grade 2 infiltrating astrocytomas, and despite a gross total resection, do reoccur and with time, turn into higher grade tumors. Additionally, when children become young adults, the factors that previously drove tumor growth, are no longer present and most residual tumors remain quiet for the remainder of time.