[Not Available].

Objective: To establish the frequency and results in patients carriers with multiple aneurysms (MA) treated by microsurgery and/or neurological endovascular therapy (NET) in the Hospital of Specialties on The National Medical Center La Raza.

Method: It is an ambispective, descriptive and longitudinal study that includes patients carriers of MA treated in the National Medical Center La Raza from March the 1 of 2009 to April the 30 of 2014.

Results: 62 patients carriers of 151 aneurysms were treated.

[Ventriculo subgaleal shunt in hydrocephalus secondary to intraventricular hemorrhage in prematures].

Background: Intraventricular hemorrhage (IVH) is one of the most serious complications in premature lightweight. While in the decade of 1970-1980 the incidence was 40-50%, now it is at least 20%. But it presents a challenge because of the multiple existing therapies and the results in terms of neurological sequelae.

[Epidermoid neoplasm of the fourth ventricle. Report of two cases].

Background: epidermoid neoplasm (EN) accounts for 1 % of whole intracranial neoplasms. Usually, it is found at the cerebello-pontine angle and the location in the fourth ventricle (FV) is rare. The aim was to report two cases of EN of the FV.