Types of brain cancer
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Common Types of Brain Cancer
Brain cancer includes a wide range of tumor types, both malignant (cancerous) and non-malignant (non-cancerous), that originate in the brain or spread to it from other parts of the body. The most common types of brain cancer are gliomas (including glioblastoma), meningiomas, pituitary tumors, and metastatic brain tumors, with each type having distinct characteristics and treatment approaches Go2007Arulmani2024Ismael2020+3 MORE.
Gliomas and Glioblastoma
Gliomas are the most prevalent type of malignant brain tumor, accounting for about 26% of all brain tumors. Glioblastoma, a subtype of glioma, is the most common and aggressive malignant primary brain tumor, making up over 50% of all malignant brain tumors. Gliomas are classified based on their molecular and histological features, which help guide prognosis and treatment Go2007Ismael2020Ostrom2023+1 MORE.
Meningiomas
Meningiomas are tumors that arise from the meninges, the protective layers surrounding the brain and spinal cord. They are usually non-malignant and represent the most common type of non-cancerous brain tumor, accounting for about 41% of all brain tumors. Meningiomas are more common in females and are often managed with surgery, with radiation or chemotherapy used for more aggressive or recurrent cases Go2007Ismael2020Ostrom2023+1 MORE.
Pituitary Tumors
Pituitary tumors develop in the pituitary gland at the base of the brain. These tumors are generally benign but can cause significant symptoms due to hormone production or pressure on nearby structures. Pituitary tumors are among the three most common types of brain tumors, alongside meningiomas and gliomas Ismael2020Priya2024.
Metastatic Brain Tumors
Metastatic brain tumors are cancers that have spread to the brain from other parts of the body, such as the lung, breast, skin (melanoma), kidney, or colon. These are the most prevalent brain tumors overall, especially in adults, and require complex, multidisciplinary care Go2007Aa2020.
Pediatric Brain Cancer Types
In children, the most common brain cancers include low-grade glioma, ependymoma, high-grade glioma, medulloblastoma, ganglioglioma, craniopharyngioma, and atypical teratoid rhabdoid tumor. These types differ from those most commonly seen in adults and often require specialized treatment approaches Petralia2020Aa2020Miller2021.
Classification and Diagnosis
Brain tumors are classified by the World Health Organization into four grades based on their cellular characteristics and aggressiveness. Accurate classification is crucial for determining the best treatment and predicting outcomes. Advances in molecular and proteogenomic analysis are improving the understanding and classification of brain tumor types, especially in pediatric cases Petralia2020Arulmani2024Kumar2019+1 MORE.
Conclusion
Brain cancer encompasses a diverse group of tumors, with gliomas (especially glioblastoma), meningiomas, pituitary tumors, and metastatic tumors being the most common types in adults. In children, additional types such as medulloblastoma and ependymoma are more prevalent. Understanding the specific type of brain cancer is essential for guiding treatment and improving patient outcomes Go2007Petralia2020Arulmani2024+5 MORE.
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