fourth ventricle


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Related to fourth ventricle: roof of fourth ventricle
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Noun1.fourth ventricle - an irregular ventricle between the third ventricle and the central canal of the spinal cordfourth ventricle - an irregular ventricle between the third ventricle and the central canal of the spinal cord
ventricle - one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid
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Contract notice: Installation of anchors urabialnych plastic with the development of technology, performance of works under the floor of the fourth ventricle anchoring / 83 aim to provide the further step of rash
There is severe hypogenesis of the cerebellar vermis, enlarged, horizontal superior cerebellar peduncles, a small mid brain in the anteroposterior direction, and a "batwing" configuration of the mid-superior fourth ventricle (Figures 1 and 2).
While hyperintensity is seen in medial thalamic and periacuaductal gray matter on T2 and FLAIR sequences of cranial Magnetic Resonance Imaging (MRI) in acute cases, atrophy in mamillary bodies, enhanced signaling in the base of fourth ventricle, midline of cerebellum may be seen in chronic cases and contrast enhancement may occur in mamillary bodies and inferior quadrigeminal region (4,5).
It exits the fourth ventricle through the ventricular foramen to the basal cisterns and from there proceeds to the spinal and cortical subarachnoid spaces.
In paediatric practice, it is an extremely useful tool for evaluating causes of hydrocephalus and CSF obstruction at the level of the aqueduct, the fourth ventricle, the outlet foramina of the fourth ventricle and the foramen magnum.
Magnetic resonance imaging (MRI) of his brain was obtained and revealed an extraaxial mass in the inferior fourth ventricle extending through the foramen magnum and impressing upon the pontomedullary junction and medulla with posterior compression of the cerebellar tonsils.
Cerebellar liponeurocytoma most commonly involves the cerebellar hemispheres but may be located in the paramedian region or vermis and may extend to the cerebellopontine angle or fourth ventricle.
They may circulate freely throughout the cerebrospinal fluid (CSF) pathways or become attached to the ependyma anywhere in the ventricles, but their predilection is for the occipital horn of the lateral ventricles and fourth ventricle.
In observations of the fourth ventricle structure surrounding the cerebellum in control group, choroid plexus was fully developed and choroid plexus epithelial cells was normal status.
In the fetuses, ROIs were placed in the cerebellar cortical region and middle cerebellar preduncles (MCP) at the level of fourth ventricle.
Brain magnetic resonance imaging (MRI) showed T1-low and T2-high bulbopontine and cerebellar lesions around the fourth ventricle (Figure).
He noted that the ventricles were quite large with the exception of the fourth ventricle, which was of normal size.