AIM To describe the origin, the course, and relationships of the labyrinthine artery (LA). MATERIAL AND METHODS Thanks to a colored silicone mix preparation, ten cranial bases were examined using x3 to x40 magnification under surgical microscope. RESULTS The LA often arose from the meatal loop of the anterior inferior cerebellar artery (AICA) (90%), or basilar artery (10%). The loop was ext...

Intracranial arachnoid cyst (IHAC) is considered as rare congenital lesions. Usually the arachnoid cyst remains asymptomatic and incidentally picked -up on routine cranial imaging. Mostly, the intracranial arachnoid cyst is located in the sylvan fi ssure, cerebello-pontine angle, or suprasellar region. However, arachnoid cyst located in the interhemispheric fi ssure is regarded as extremely unc...

The aim of this study was to analyze clinical aspects, hearing evolution and efficacy of clinical treatment of patients with sudden sensorineural hearing loss (SSNHL). This was a prospective clinical study of 136 consecutive patients with SSNHL divided into three groups after diagnostic evaluation: patients with defined etiology (DE, N = 13, 10%), concurrent diseases (CD, N = 63, 46.04%) and id...

BACKGROUND AND PURPOSE Conventional MR imaging permits subcategorization of brain stem tumors by location and focality; however, assessment of white matter tract involvement by tumor is limited. Diffusion tensor imaging (DTI) is a promising method for visualizing white matter tract tumor involvement supratentorially. We investigated the ability of DTI to visualize and quantify white matter trac...

Cavernoma is the most common vascular malformation of the brain with an incidence of 0.4-0.5%, prevalence of 0.6 per 100,000 inhabitants, predominance in males between 20-40 years old, and predominance of 25% in children [1-4]. Brainstem cavernomas are rare (18%) and present a bleeding rate higher than supratentorial cavernomas; they are more common in the pons (61%), with an estimated bleeding...

Dr. Leopoldo Di Iorio: On the basis of this clinical presentation, four main hypotheses were considered and simultaneously investigated. First, a cardiogenic shock was considered (subjects with Down’s syndrome can often have multiple cardiac abnormalities, such as atrium-ventricular channel, ventricular or atrial defects, Fallot’s tetralogy), but echocardiography excluded significant alteration...

A new technique for the suboccipital approach to the cerebello-pontine angle was presented to this society* in November, 1941, but because of the advent of war, publication was postponed. This technique was developed principally for section of the trigeminal root . for tic douloureux, but is useful for certain other procedures in the angle. The present report is based on our experience with thi...

Processing speed is an important construct in understanding cognition. This study was aimed to control task specificity for the neural mechanisms underlying cognitive processing speed. Forty young adult subjects performed attention tasks of two modalities (auditory and visual) levels rules (compatible incompatible). Block-design fMRI captured BOLD signals during tasks. Thirteen regions interest...