*Mast cell astrocytoma* is a type of astrocytoma that is a malignant brain tumor. Mast cells are part of the immune system and their role is to protect the body from various threats such as infections and allergies. In the context of a brain tumor, mast cells can trigger the development of pathological processes leading to the occurrence of mast cell astrocytoma.
In general, most malignant tumors in the brain are neuroglioma tumors, the most common type being astrocytomas. They develop from normal astrocyte cells, which support the neurons of the brain and themselves form the structures responsible for the implementation of most