The estimated age of the glioblastomas at diagnosis was median 330 days. But ranging from 156 days to 776 days. Depending on the tumor volume at diagnosis. The median specific growth rate of the tumors was 1. 4% per day, and the equivalent volume doubling time was 49. 6 days.
Grade 1 brain tumors grow very slowly and rarely spread into nearby tissues. Grade 4 are the most aggressive. GBMs are grade 4 astrocytoma. They grow quickly and often invade nearby brain tissue. Diagnosis was median 330 days, but ranging from 156 days to 776 days.
The estimated age of glioblastoma at diagnosis was a median of 330 days, ranging from 156 to 776 days, depending on the tumor volume.
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