BACKGROUND An appreciation of normal intracranial anatomy allows optimal planning of trajectories necessary for safe and effective neuroendoscopy. Little information exists on displacement of the caudal brain relative to the skull upon head movement; this could have important implications for planning and performance of neuroendoscopic procedures. We used kinematic magnetic resonance imaging (M...

Abstract Inertial vibrating screens operating in resonance and post-resonance mode represent a class of that present series advantages: simple construction maintenance, high flow rates, low energy consumption, level vibrations transmitted to the building which they are located, screening efficiency. Due these advantages, tend replace all other types screens. However, cisterns very sensitive var...

Computed tomography (CT) of the brain has been used extensively to evaluate both supraand infratentorial mass lesions . However, even with the use of intravenous contrast enhancement, visualization of small brainstem lesions has not been totally satisfactory . The differentiation of intrafrom extraaxial lesions has also at times proved difficult and frustrating. Computed tomography combined wit...

A 40 year male presented with sudden loss of consciousness. There was history of progressive loss of vision in the right eye and dull pain in the right temporal region. He was subjected to a CT scan of the head. Plain CT scan (Fig. 1) shows a 6.8x6.6x6.0 cm heterogenous SOL with a well defined calcified rim and irregular hypodense areas in the right fronto-temporoparietal region causing mass ef...

The explicit yet enigmatic involvement of dopamine in cortical physiology is in part volumetric (beyond the synapse), as is apparently the action of neuroleptics targeting dopamine receptors. The notion that nonsynaptic neuronal membranes would translate extracellular dopamine into receptor-specific spatiotemporal downstream signaling, similar to the chemical synapse, is intriguing. Here, we re...

We present a case of sarcoidosis in a 14-year-old girl who presented with a short history of visual disturbance. Computed tomography and magnetic resonance imaging (MRI) demonstrated enlargement of the optic chiasm and prechiasmic optic nerves. Post-contrast MRI showed marginal enhancement of the affected areas of the optic pathways. A diagnosis of optic nerve glioma and arachnoid gliomatosis w...

Claudin-1 is a tight junction transmembrane protein. Its localization in the maturation ameloblasts of rat incisors was examined by immunofluorescence microscopy. Distal junction area of ruffle-ended ameloblasts (RA) and the Golgi apparatus of a sub-population of smooth-ended ameloblasts (SA) and RAs stained positive with anti-claudin-1 antibodies. Since it has been shown that ameloblasts repea...

A 38 year old woman presented with a short history of headache, double vision, and rotatory vertigo. Medical history was negative except years of nicotine misuse. Cranial MRI disclosed a large infarction in the area supplied by the left posterior inferior cerebellar artery (PICA). Occlusion of the left vertebral artery was confirmed by MR angiography. Five months later, she was again admitted w...

Cerebrospinal fluid (CSF) rhinorrhea is often intermittent, thus complicating the cisternographic localization of the leakage. In four patients studied, this difficulty was overcome by lumbar infusion of artificial CSF to which a bolus of radionuclide was added. The tracer was moved in bulk to the basal cisterns, and the rise in CSF pressure elicited a profuse rhinorrhea. Sequential imaging was...

An investigation of the identifiable real-time sonographic features of the normal infant brain in the horizontal, coronal, inclined coronal, and midsagittal planes was undertaken. Correlations were made of sonograms of intact brains in vitro, corresponding brain sections, and sonograms in vivo. A large number of anatomic structures could be consistently depicted including cisterns, fissures, fa...