Radiation necrosis is a known sequela of delivering high doses of ionizing radiation to the central nervous system and may be confused with tumor recurrence. Although stereotactic radiation has found increasing application in managing central nervous system malignancies, the imaging appearance of benign tissue several years after such treatment has not been frequently documented in the medical ...

Hypofractionation has been a recurring issue during the near century-long history of radiation oncology. Coutard first introduced protracted dose-fraction regimens that uniquely allowed for the control of "deep" tumors. Subsequent studies have consistently shown that hypofractionation leads to an increase in complication rates and a paradoxical decrease in cure rates. There have, nonetheless, b...

Hypofractionation has been a recurring issue during the near century-long history of radiation oncology. Coutard first introduced protracted dose-fraction regimens that uniquely allowed for the control of “deep” tumors. Subsequent studies have consistently shown that hypofractionation leads to an increase in complication rates and a paradoxical decrease in cure rates. There have, nonetheless, b...

Radiotherapy (RT) remains an effective treatment in patients with acromegaly refractory to medical and/or surgical interventions, with durable tumor control and biochemical remission; however, there are still concerns about delayed biochemical effect and potential late toxicity of radiation treatment, especially high rates of hypopituitarism. Stereotactic radiotherapy has been developed as a mo...

At the very start of their clinical training, radiation oncologists tend to embrace technology. The specialty draws a preponderance of technophiles to it, and those few who are not at first passionate about technology quickly become so. This has been especially true over the past 2 decades with the introduction of innovative therapies such as three-dimensional conformal radiation therapy (3DCRT...

A patient with progressive visual loss was found to have an optic nerve sheath meningioma. The patient was treated with stereotactic radiotherapy, a computer-guided stereotactic technique that minimizes the risk of radiation-induced optic neuropathy. Six months after treatment, the patient was doing well and showed no signs of radiation-induced optic neuropathy.

OBJECTIVE A second lung cancer is occasionally observed in patients who underwent surgical resection of the index lung cancer. The purpose of this study is to evaluate stereotactic body radiation therapy for second lung cancer. METHODS Fifty-one medically inoperable patients who underwent stereotactic body radiation therapy for second lung cancer were the subjects: 31 cases of multiple primar...

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When Policy Topic is covered Stereotactic radiosurgery using a gamma or LINAC unit may be considered medically necessary for the following indications:  arteriovenous malformations;  acoustic neuromas;  pituitary adenomas;  non-resectable, residual, or recurrent meningiomas;  craniopharyngiomas;  glomus jugulare tumors;  solitary or multiple brain metastases in patients having good perfo...