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> Brain Tumors
> Pituitary adenomas
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Pituitary adenomas
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Pituitary adenomas are benign, slow-growing lesions that represent 10-20% of all primary brain tumors. They produce symptoms by compression of the normal gland (resulting in hypopituitarism) or compression of the optic nerves and/or chiasm. In addition, hormonally acive tumors cause hypersecretory states such as Cushing' disease, acromegaly and amenorrhea/galactorrhea. These tumors are generally amenable to surgical resection which is usually carried out via a transsphenoidal approach. Often, an endoscope is used to either perform the procedure entirely or to assist in visualizing hard-to-reach areas under the microscope.
CyberKnife radiosurgery or, less commonly, fractionated radiotherapy, is used for recurrent or residual tumors.
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