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Radiosurgery for pituitary adenomas.

Bruce E Pollock1

  • 1Department of Neurological Surgery and the Division of Radiation Oncology, Mayo Clinic College of Medicine, Rochester, Minn., USA.

Progress in Neurological Surgery
|February 24, 2007
PubMed
Summary

Stereotactic radiosurgery effectively manages pituitary adenomas, achieving tumor control in over 95% of cases and biochemical remission in 80% of hormone-producing tumors. It offers a valuable treatment option, especially for recurrent or high-risk patients.

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Area of Science:

  • Neurosurgery
  • Endocrinology
  • Radiation Oncology

Background:

  • Stereotactic radiosurgery (SRS) has been a management option for pituitary adenomas for over three decades.
  • It is recognized for its efficacy in tumor control and hormonal normalization.

Purpose of the Study:

  • To review the efficacy and outcomes of stereotactic radiosurgery in managing pituitary adenomas.
  • To highlight factors influencing treatment success and potential complications.

Main Methods:

  • Review of existing studies and clinical data on stereotactic radiosurgery for pituitary adenomas.
  • Analysis of tumor response, biochemical remission rates, and complication profiles.

Main Results:

  • Over 95% of patients experience tumor shrinkage or stabilization.
  • Biochemical remission is achieved in approximately 80% of selected hormone-producing adenomas within 1-5 years.
  • Delayed pituitary deficits occur in 20-50% of patients; visual loss is rare with doses <12 Gy.

Conclusions:

  • Stereotactic radiosurgery is highly effective for pituitary adenoma management, offering significant tumor control and hormonal remission.
  • It is a crucial alternative for patients with recurrent tumors or those unsuitable for surgery.
  • Careful patient selection and follow-up are essential to optimize outcomes and minimize risks.

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