INTRODUCTION Central neurocytomas are rare neuroectodermal tumors believed to arise from the subependymal matrix of the lateral ventricles. CASE REPORTS A 26-year-old woman and a 33-year-old man each had a large, heterogeneous, contrast enhancing mass in the lateral ventricles at the foramen of Monro causing bilateral hydrocephalus. The woman died after surgery, but the man is asymptomatic af...

In 160 fetuses the width of transparent septum, lateral ventricles and IV ventricle prenatally during ultrasound examination were studied. Pregnant women divided into two groups, main group consisted pregnant in a state hypothyroidism, control included with uncomplicated pregnancy. The analysis our data showed that hypothyroid there is an expansion cavity anteroposterior size compared group.

In dogs anesthetized with intravenous chloralose, vasopressin was injected either intravenously or into the cerebral ventricles, and the cardiovascular effects were studied before and after stabilizing the arterial blood pressure, bilateral vagotomy, and transection of the cervical cord at the level of C2. Intravenous vasopressin caused a rise in arterial blood pressure and pronounced bradycard...

We have developed and employed a stereotaxic coordinate system for the pig brain based on eternal skull landmarks. Sagittal, coronal, and horizontal planes were defined. Based on histological maps and ventricular casts, the coordinates for locating the lateral ventricles were described. Guide tubes leading to the lateral ventricles have been chronically implanted. This access route to the ventr...

We present results of morphometric analysis of the lateral ventricles of a group of schizophrenic and control subjects to investigate possible shape differences associated with schizophrenia. Our results show shape changes localised to three regions : the temporal horn (its tip near the amygdala, and along its body near the parahippocampal fissure), the central part of the lateral ventricles ar...

Cholinergic agonists were microinjected into either the lateral ventricle or the preoptic area of sexually experienced male rats. In Experiment 1 carbachol, injected into the lateral ventricles, delayed the initiation of sexual behavior. When injected into the preoptic area, carbachol again delayed the onset of copulation, but these delays were shorter than after ventricular injections. In addi...

The ventricular system carries and circulates cerebral spinal fluid (CSF) and facilitates clearance of solutes and toxins from the brain. The functional units of the ventricles are ciliated epithelial cells termed ependymal cells, which line the ventricles and through ciliary action are capable of generating laminar flow of CSF at the ventricle surface. This monolayer of ependymal cells also pr...

We describe a 6-month-old boy suffering from motor and mental retardation. All radiological features were suggestive of holoprosencephaly with no identifiable lateral or third ventricles and fusion of the thalami.