A primary supratentorial neoplasm refers to a type of brain tumor that originates in the upper part of the brain, specifically within the cerebral cortex or subcortical structures located above the tentorium cerebelli. The tentorium cerebelli is a membrane that separates the cerebellum (located in the lower part of the brain) from the rest of the brain.
These neoplasms are considered primary because they initially develop within the brain itself, as opposed to secondary neoplasms that originate elsewhere in the body and spread to the brain through a process known as metastasis.
Supratentorial neoplasms may arise from glial cells (gliomas), neuronal cells (neuroblastomas), or other cell types within the brain. The classification of these tumors also depends on their specific characteristics, such as their grade, location, and histological composition.
Primary supratentorial neoplasms can present a range of symptoms, depending on their size, location, and rate of growth. Common symptoms may include headaches, seizures, cognitive changes, motor or sensory impairments, and personality abnormalities. Diagnosis typically involves a combination of imaging techniques, such as computed tomography (CT) scans or magnetic resonance imaging (MRI), and tissue biopsies for pathological analysis.
Treatment options for primary supratentorial neoplasms may involve surgical resection (removal of the tumor), radiation therapy, and chemotherapy. The specific treatment plan depends on factors such as the tumor's size, grade, and location, as well as the overall health of the individual.
