third ventricle


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Related to third ventricle: fourth ventricle
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Noun1.third ventricle - a narrow ventricle in the midplane below the corpus callosumthird ventricle - a narrow ventricle in the midplane below the corpus callosum; communicates with the fourth ventricle via the Sylvian aqueduct
ventricle - one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid
References in periodicals archive ?
(4) They can result in hydrocephalus through occlusion of the aqueduct and the third ventricle. (5) SSCs in different age groups have different clinical presentations.
The severity of hydrocephalus with tumor in the lateral or third ventricle was significantly higher than that with tumors in the fourth ventricle (severe hydrocephalus: lateral ventricle, 51.7%; third ventricle, 47.0%; fourth ventricle, 11.1%; ?2 = 26.0, P < 0.001).
A computed tomographic (CT) scan showed a large suprasellar hyperdense mass extending upward into the third ventricle. Magnetic resonance imaging (MRI) revealed a 2.5 x 4.5 x 5.0-centimeter mass centered at the hypothalamus, with extension into the third ventricle (Figure 1).
Acute hydrocephalus can be diagnosed from the appearance of enlargement of the lateral ventricles, ballooning of the third ventricle, and increased diameter of the temporal horns (3).
Pomper et al, (3) reported that chordoid gliomas located in the region of the hypothalamus and anterior third ventricle are ovoid in shape and well circumscribed.
Objective: To study the efficacy of transcallosal, transforaminal approach in excision of colloid cysts of third ventricle in terms of complete excision and post-operative complications.
Caption: FIGURE 1: The marked lateral ventricle hydrocephalus secondary to a 16 x 15 x 15 mm colloid cyst within the third ventricle seen on CT scan at admission from the sagittal view.
The patient underwent endoscopic third ventriculostomy (ETV) with biopsy of the anterior part of the lesion which appeared as a purplish and friable mass in the posterior part of the third ventricle; a good hemostasis was obtained without evidence of intraventricular and/or mass hemorrhage.
Brain magnetic resonance imaging (MRI) showed dilatation of the lateral ventricles and the third ventricle, a thin corpus callosum, hydrocephalus, cerebellar hypogenesis and DWM (Figure 1).
Colloid cysts are benign lesions, found in the anterior part of the roof of the third ventricle. A PubMED search of literature was performed to identify the evidence on different treatment options and surgical approaches for removal of colloid cysts.
Using this scheme, the aim was to segment nine mid-brain structures including left ventricle, right ventricle, third ventricle, anterior commissure, posterior commissure, left putamen, right putamen, left caudate nucleus and right caudate nucleus.