Vein of Galen arteriovenous malformation: Unedited microneurosurgery

Joham Choque-Velasquez, Juha Hernesniemi

Date of publication: 25-Jun-2019

Background: Vein of Galen arteriovenous malformations (VGAVMs) are vascular malformations of the pineal region between a persistent embryological median prosencephalic vein of Markowski and the arterial choroidal system by a direct (mural type) or indirect (choroidal type) communication. Angiographic evaluation of VGAVMs usually describes a limbic arch between the anterior and posterior cerebral arteries throughout a pericallosal artery, and the classic “ε” shape configuration of the thalamostriate veins drainage into a subtemporal or a lateral mesencephalic vein due to the underdevelopment of the straight sinus, sigmoid sinus, and jugular bulbs. Moreover, falcine dural channels join the pouch of the malformation with the posterior third of the superior sagittal sinus and less frequently with the cavernous sinus, inferior petrosal sinus, and facial veins. At present, endovascular therapy is the standard management for these lesions. However, under failure of endovascular procedures such in this case, microsurgical management of VGAVMs under an experienced neurosurgical team might be paramount.

Intraventricular cryptococcoma mimicking a neoplastic lesion in an immunocompetent patient with hydrocephalus: A case report

Xavier A. Santander, Raquel Gutiérrez-González, Carlos Cotúa, Eva Tejerina, Gregorio-Boto Rodríguez

Date of publication: 25-Jun-2019

Background: The aim of this study is to highlight the importance of cryptococcosis as one of the most common fungal infections of the central nervous system, stressing the consideration of a cryptococcoma within the list of differential diagnosis of intraventricular masses in immunocompetent hosts.

Supratentorial cavernoma and epilepsy: Experience with 23 cases and literature review

Mohamed Khallaf, Mohamed Abdelrahman

Date of publication: 25-Jun-2019

Background: The current study aimed to assess the role of microsurgical treatment of patients with supratentorial cavernoma with epilepsy based on analysis of our patients.

Spinal cord stimulator failure: Migration of a thoracic epidural paddle to the cervical spine

Sarah S. Travers, Thorkild V. Norregaard

Date of publication: 25-Jun-2019

Background: Spinal cord stimulators successfully treat a number of pain syndromes but carry a risk of hardware complications. Here, we present a case of cranial migration of a thoracic epidural paddle to the cervical spine.

Survival and prognostic factors in childhood medulloblastoma: A Brazilian single center experience from 1995 to 2016

Cristina Birlem Bleil, Jorge Wladimir Junqueira Bizzi, Andre Bedin, Francine Hehn de Oliveira, Ápio Cláudio Martins Antunes

Date of publication: 25-Jun-2019

Background: Medulloblastoma is the most common malignant brain tumor in the pediatric population. Despite prognosis improvement in the past two decades, one-third of the patients still remain incurable. New evidence suggests that medulloblastoma comprises four distinct entities; therefore, treatment de-escalation is required. The aim of this article is to evaluate epidemiological data from patients treated at our institution. The primary objective is to analyze overall survival (OS) and event-free survival (EFS) and the secondary objective is to identify prognostic factor from this cohort.

Mutism resulting from heterochronic bilateral cerebellar hemorrhages – A case report

Masahito Katsuki, Ayumi Narisawa, Hiroshi Karibe, Motonobu Kameyama, Teiji Tominaga

Date of publication: 25-Jun-2019

Background: Cerebellar mutism (CM) is a neurological condition characterized by lack of speech due to cerebellar lesions. Interruption of the bilateral dentatothalamocortical (DTC) pathways at midline structure seems the principal cause of CM but not fully understood. We described a rare case of CM due to heterochronic bilateral cerebellar hemorrhages.

Risk factors for postoperative spinal infection: A retrospective analysis of 5065 cases

Matt El-Kadi, Erin Donovan, Laurel Kerr, Coby Cunningham, Victor Osio, Samah Abdallah, Joseph Kazan

Date of publication: 25-Jun-2019

Background: Multiple factors increase the risk for spinal surgical site infection (SSI): prior SSI, obesity, diabetes mellitus, advanced age, American Society of Anesthesiologists class, alcohol abuse, low prealbumin levels, smoking, history of cancer, chronic steroids, immunosuppressive drugs, rheumatoid arthritis, and hypothyroidism.

Abordaje Puramente Endoscópico Supracerebeloso Infratentorial para Quiste Epidermoide en Tercer Ventrículo

Franco Rubino, Santiago Aguilera, Juan Iaconis Campbell, Miguel Mural, Eduardo Salas, Tito Adrian Cersosimo

Date of publication: 25-Jun-2019

Introducción: El Quiste Epidermoide como tumor de la región pineal es una patología infrecuente y poco descripta. Su prevalencia en el 3er ventrículo es de 0,0042% de los tumores primarios intracraneales. Para lograr la exeresis macroscópica total se utilizó el abordaje Supracerebeloso Infratentorial con Endoscopio rígido de Base de Cráneo, técnica descripta para abordaje de lesiones de la región pineal. El Objetivo del Trabajo es la presentación de la técnica quirúrgica del abordaje, con la resolución de la patología infrecuente que se presenta.