The treatment of patients with malignant gliomas is palliative and encompasses surgery, radiotherapy, and chemotherapy. Outcome measures have demonstrated improvement in both survival and neurologic performance in patients undergoing complete or near-complete tumor resection. After surgery, involved-field radiotherapy (radiotherapy administered to the tumor and to the tissue in a 3-cm radius su...

The purpose of this study is to determine the extracranial dose in patients treated for pituitary adenoma with conventional and stereotactic radiotherapy (SRT). Twelve patients receiving treatment with radiation for pituitary adenoma were selected. Six patients underwent SRT, and six patients underwent conventional radiotherapy. Extracranial doses were measured with pre-irradiation annealed lit...

W hen arteriovenous malformations (AVMs) of the brain were first described in the middle of the 19th century, deciding on treatment was easy, because there was none. Since the first reports of the neurosurgical exposure of brain AVMs at the end of that century, 2 their management has been dogged by controversy. In 1928, Cushing and Bailey wrote, ‘‘...to extirpate one of these aneurysmal angioma...

Stereotactic ablative radiotherapy (SABR) is a possible treatment option for patients who develop recurrence within or at the edge of previously irradiated volume. Robotic stereotactic result technological advances in robotic precision, real-time imaging, non-invasive, highly customizable plan, and delivery with sub-millimeter accuracy. This article reviews radiobiologic, technical, clinical as...

The present study is a case report of patient with diagnosis renal cell carcinoma poor prospects, in whom long-term tumor control at the level deep cytoreduction was achieved through aggressive multidisciplinary management using surgery, stereotactic radiotherapy, and sequential systemic therapy immunotherapy based on checkpoint inhibitor anti-PDL1 activity combined anti-angiogenic treatment, b...

The sequence of incremental dose delivery during a radiotherapy fraction can potentially influence the radiobiological effect. This would be most noticeable during the long fractions characteristic of hypo-fractionated stereotactic radiotherapy and radiosurgery. We demonstrate here the spatio-temporal variation of dose delivery by the CyberKnife to a lung tumor and propose strategies to reduce ...

For early-stage lung cancer, the treatment of choice is surgery. In patients who are not surgical candidates or are unwilling to undergo surgery, radiotherapy is the principal treatment option. Here, we review stereotactic body radiotherapy, a technique that has produced quite promising results in such patients and should be the treatment of choice, if available. We also present the major indic...

Pineal parenchymal tumors are rare. Of the three types of pineal parenchymal tumors, pineocytomas are the least aggressive and are not known to diffusely disseminate. In this paper, we report the successful treatment of a case of pineocytoma with diffuse leptomeningeal relapse following initial stereotactic radiotherapy. A 39-year-old female presented with headaches, balance impairment, urinary...