Third ventricle | Radiology Reference Article - Radiopaedia.org
2024年12月6日 · The third ventricle is a median cleft between the two thalami, which make up the superior aspect of the lateral walls. The thalami are separated from the hypothalamus (anteriorly) and subthalamus (posteriorly) by the hypothalamic …
Fetal ventriculomegaly | Radiology Reference Article
2024年11月1日 · While many fetuses with mild ventriculomegaly have a normal outcome, there are also a large number of congenital syndromes associated with enlarged ventricles. Radiographic features Ultrasound. Ultrasound is the screening modality of choice for …
Head ultrasound | Radiology Reference Article - Radiopaedia.org
2024年8月21日 · Head ultrasound (HUS), also called cranial ultrasound (CUS), is obtained for the diagnosis and follow-up of premature and sick neonates.
Dysgenesis of the corpus callosum - Radiopaedia.org
2024年12月13日 · The key to distinguishing these entities from a dilated third ventricle with dorsal cyst is identifying the choroid plexus, which demarcates the roof of the third ventricle 5.
Obstructive hydrocephalus | Radiology Reference Article
2024年11月8日 · lateral ventricles. enlargement of the temporal horns (best indicator) transependymal edema, or periventricular oozing, may be visible as high T2 signal on MRI or low-density change on CT around the margins of the ventricles. third ventricle. outward bowing of the lateral walls. inferior bowing of the floor. fourth ventricle
Ventriculomegaly | Radiology Reference Article - Radiopaedia.org
2022年6月30日 · Ventriculomegaly is defined as enlargement of the ventricles. Simply, there are two causes: hydrocephalus. communicating; non-communicating; parenchymal atrophy; Refer to the article on hydrocephalus vs atrophy for more details on how to differentiate both entities.
Colloid cyst of the third ventricle - Radiopaedia.org
2024年11月28日 · Colloid cysts of the third ventricle are benign epithelial lined cysts with characteristic imaging features. Although usually asymptomatic, they can rarely present with acute and profound hydrocephalus.
Choroid plexus | Radiology Reference Article - Radiopaedia.org
2024年7月19日 · The choroid plexus is located within the cerebral ventricles and is made of choroidal epithelial cells (type of ependymal cell), loose connective tissue (tela choroidea), and permeable capillaries. It produces cerebrospinal fluid.
Aqueduct stenosis | Radiology Reference Article - Radiopaedia.org
2024年11月5日 · Ultrasound. An antenatal exam can show features of fetal hydrocephalus with a near-normal posterior fossa. There can be secondary thinning of the cortical mantle as well as secondary macrocephaly. MRI. MRI better delineates the extent of obstructive hydrocephalus with an enlargement (often marked) of the lateral and third ventricles. The ...
Cavum vergae | Radiology Reference Article - Radiopaedia.org
2024年12月28日 · The cavum vergae has also been referred to as the 6 th ventricle 3 although this usage has fallen out of favor, both because of the lack of any direct communication between the cavum vergae and the ventricular system proper and …
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