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Pically occurs in children in the cerebellum or brainstem, and occasionally in the cerebral hemispheres. It can occur in adults, but less commonly. Grade i tumors are slow growing and relatively benign. Treatment options include: observation – for small tumors and tumors located in areas that are not candidates for surgery (brainstem) may be observed and may never grow. Surgery – treatment of choice in most cases. Complete removal can be curative. Radiation – reserved for tumors that are unable to be surgically removed, residual tumor after surgery, or recurrent tumor. Grade ii – low-grade glioma: includes astrocytoma, oligodendroglioma, and mixed oligoastrocytma. Grade ii gliomas typically occur in young adults (20s - 50s) and are most often found in the cerebral hemispheres. Due to the infiltrative nature of these tumors, recurrences may occur. Some grade ii gliomas recur and evolve into more aggressive tumors (grade iii or iv). Treatment options include: observation – for tumors located in areas that are not candidates for surgery or high risk to cause loss of function after surgery. Some tumors may never grow, but others will enlarge or transform to a high-grade tumor warranting treatment. Surgery – treatment of choice if tumor is able to be removed without causing loss of function. Complete removal can be curative.   radiation – can be used either following surgery to slow residual tumor growth or in cases where surgery is not an option. buy cheap viagra medicaresupplementspecialists.com/pfz-generic-viagra-for-sale-jt/ india generic viagra online pharmacy cheapest viagra online buy generic viagra cheap viagra uk next day delivery buy viagra generic buy viagra online usa viagra sale australia buy generic viagra online usa pharmacy   chemotherapy – not typically used except for recurrent or some high-risk tumors. Grade iii – malignant glioma: includes anaplastic astrocytoma, anaplastic oligodendroglioma, and anaplastic mixed oligoastrocytoma. Grade iii tumors grow faster and more aggressively than grade ii astrocytomas. They invade nearby brain tissue with tentacle-like projections, making complete surgical removal more difficult. Patients often present with seizures, neurologic deficits, headaches, or changes in mental status. Treatment options include: observation – not typically an option due to malignant and rapid growth. Surgery – maximal removal of the tumor is recommended if tumor can be removed without causing loss of function.   radiation – recommended after surgery with multiple fractions over ~6 weeks. Chemotherapy – given after radiation for 6-12 months; temozolomide (temodar). Clini.
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