Fibrillary Astrocytoma is a type of brain tumor that develops when cells in the brain known as astrocytes multiply uncontrollably. There are several synonyms for Fibrillary Astrocytoma, including Diffuse Astrocytoma, Low-Grade Astrocytoma, Grade II Astrocytoma, and Infiltrative Astrocytoma. All these terms are used to describe tumors that grow slowly and distribute their cells evenly throughout the brain's tissues. Although they are considered less aggressive than high-grade tumors, Fibrillary Astrocytomas can still impact brain function and cause serious health problems. Treatment options for Fibrillary Astrocytoma may include surgery, radiation therapy, chemotherapy, and other targeted therapies, depending on the tumor's type, size, and location.