Knowledge of the neurobiological bases of behavior, and above all, mastery of the tools necessary for its modification, is essential for addressing numerous types of pathologies with clinical and social impact. People can change; we only need to change our approach to offer them even a chance for the common good of society.

Neuroenteric cysts (NECs) are rare, congenital, and benign lesions that result from persistent or abnormal communication between the neuroectoderm, notochord, and endoderm. They occur primarily in pediatric and young adult patients and are associated with other vertebral-medullary, gastrointestinal, and respiratory malformations. They are intradural, extramedullary lesions, with intramedullary presentation being rare. We present the case of a patient with a recurrent intramedullary intraspinal Neuroenteric cyst at the D4-D5 level.

Free-living amoeba infections present with acute intracranial hypertension that is difficult to manage. In Peru, the most reported species are Balamuthia spp., Acanthamoeba spp., and Naegleria spp. We present the case of a child with a torpidly progressing amoebic meningoencephalitis, seen in our hospital in May 2023. Our objective is to describe the aggressive clinical presentation as a differential diagnosis for a brain tumor.

A giant cerebral aneurysm is one that reaches a size greater than 25 mm in diameter, and whose complications are rupture and a mass effect like a tumor. The complex anatomy of the posterior communicating segment and the size of the aneurysm make it challenging to treat surgically, so the best definitive treatment option for this type of pathology is the Endovascular route, which seeks obliteration and exclusion of the aneurysm