Gamma Knife Radiosurgery
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Pituitary Tumors

Pituitary tumors may be non-functioning, that is not producing abnormal levels of hormones, but cause symptoms by progressive growth and compression of surrounding nerves. Problems with vision are the greatest threat from uncontrolled tumor growth and occur due to compression of the optic nerves by the tumor. GKS may be considered for these tumors when surgical resection is incomplete or not possible.

A second type of pituitary tumor is the secreting tumors. These are generally smaller, and produce symptoms related to the type of hormone that they produce. GKS has been used for patients with Cushing's disease after a failed open surgery. Other reports have suggested utility of GKS for patients with prolactinomas and growth hormone secreting tumors.

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