A brain tumor containing cells derived from the glial cells (astrocytes or "star-shaped" cells) of the nervous system, which may be benign or malignant
brain/spinal cord tumor that arises from astrocyte cells (one type of glial cell [a glue-like structure or tissue] )
{i} tumor which is composed of astrocytes and forms in the brain or nervous system (Medicine)
Astrocytomas are tumors that start in brain cells called astrocytes There are different kinds of astrocytomas, which are defined by how the cancer cells look under a microscope