What are Pilocytic/Pilomyxoid Astrocytomas?
Pilocytic/pilomyxoid astrocytomas are pediatric low-grade gliomas. Astrocytes are a type of “glial” cell that provide support for the neurons in the brain. Tumors resembling astrocytes, called astrocytomas, make up the largest group of brain cancers. The World Health Organization (WHO) classification scheme divides astrocytomas into four grades, and pilocytic astrocytomas fall into the least aggressive group (grade I). Pilomyxoid astrocytomas are a microscopically distinctive type of grade II tumor.