The Transcranial Doppler TCD is a useful tool for the hemodynamic monitoring of the brain when there is cerebral injury due to subarachnoid hemorrhage, it allows us to act in time, since it is a non-invasive tool that is done in the patient's bed.

Coiling is the most common endovascular technique used for the treatment of aneurysms. Different types are available and Penumbra coils are a new option in the endovascular armamentarium.

Neuroendoscopy is a diagnostic and therapeutic method of various forms of neurocysticercosis. Extraparenchymal neurocysticercosis is able to produce bone and dural erosion, so must be considered in the differential diagnosis of cerebrospinal fluid.

The infiltrative nature of malignant gliomas make their resection a challenge to neurosurgeons. 5-aminolevulinic acid (5-ALA) is a drug that helps to properly delimit the edges of a high-grade glioma, by using a modified microscope, and thus increases the degree of tumor resection, ultimately improving the prognosis of the disease.

Survival of patients operated on Astrocytoma grade II in our hospital is 56.7 months, with the factors of better prognosis being the "low risk" group and the total resection. Its classification into prognostic risk groups based on pre-surgical clinical data helps us predict survival before surgery.

Traumatic intracranial hypertension is the major pathophysiological issue of traumatic brain injury (TBI) and its treatment usually demands general and specific measures; nevertheless decompressive craniectomy is an extreme resource available for refractory cases, current data are not enough to define its indications and long term results.They concluded that descompressive craniectomy is a useful option for ICP control and a better outcome of the TBI in the long term.