hajasäteilyominaisuudet

Hajasäteilyomi, also known as diffuse astrocytoma, is a type of primary brain tumor that originates from astrocytes, a type of glial cell. Unlike more localized brain tumors, diffuse astrocytomas infiltrate surrounding brain tissue, making surgical removal challenging and often incomplete. This infiltrative nature contributes to their classification as a grade II glioma according to the World Health Organization (WHO) classification of central nervous system tumors.

The symptoms of Hajasäteilyomi can vary widely depending on the location and size of the tumor. Common symptoms may include headaches, seizures, cognitive changes, and focal neurological deficits such as weakness or sensory disturbances. Due to their slow-growing nature, symptoms can develop gradually over months or even years. Diagnosis typically involves neuroimaging techniques like MRI, which can reveal the extent of tumor infiltration. A biopsy is often necessary for definitive diagnosis and grading.

Treatment for Hajasäteilyomi usually involves a multidisciplinary approach. While complete surgical resection is rarely achievable, surgeons aim to remove as much of the tumor as safely possible to alleviate symptoms and reduce tumor burden. Radiation therapy and chemotherapy are often employed after surgery to target any remaining tumor cells and prevent or slow down tumor progression. The prognosis for Hajasäteilyomi is generally considered guarded, with recurrence being common due to the infiltrative nature of the tumor. Ongoing research focuses on developing more effective treatment strategies and understanding the molecular drivers of these tumors.