Popular guidelines

Where are cysts found in the lateral ventricles?

Where are cysts found in the lateral ventricles?

They are most frequently encountered in the trigone of the lateral ventricles 6 . On CT the cyst itself can only be deduced to exist by the effect on the contour of the ventricle in which it arises. The ventricle is focally expanded.

Is the intraventricular arachnoid cyst benign or asymptomatic?

Intraventricular arachnoid cysts are non-neoplastic, benign and usually asymptomatic. If large and/or thought to be symptomatic, these cysts can be fenestrated endoscopically 3,4 . The differential diagnosis is essentially that of other intraventricular cyst lesions including 6: 1. Park SW, Yoon SH, Cho KH et-al.

Is the arachnoid cyst a choroid plexus cyst?

Some are indeed a type of arachnoid cyst whereas others are lined by other tissue and are in fact ependymal cysts, neuroepithelial cysts or very large choroid plexus cysts 6 . Like arachnoid cysts elsewhere, they may be asymptomatic and discovered incidentally.

Where do intraventricular simple cysts follow CSF?

Intraventricular simple cysts have appearances similar to arachnoid cysts elsewhere (except for their location). They follow CSF on all modalities and sequences and have a very thin or imperceptible wall. They are most frequently encountered in the trigone of the lateral ventricles 6 .

Are there any cases of cysts in the lateral ventricles?

The MR imaging appearances in two cases of proven and two cases of presumed neuroepithelial cysts arising in the lateral ventricles are reported; two patients were symptomatic. A case of spontaneous regression of a large intraventricular cyst is also described.

Intraventricular arachnoid cysts are non-neoplastic, benign and usually asymptomatic. If large and/or thought to be symptomatic, these cysts can be fenestrated endoscopically 3,4 . The differential diagnosis is essentially that of other intraventricular cyst lesions including 6: 1. Park SW, Yoon SH, Cho KH et-al.

What kind of cyst is on the arachnoid membrane?

An arachnoid cyst is also known as a leptomeningeal cyst. This is a cyst between the brain and the arachnoid membrane. This membrane is one of the protective coverings around the brain. An arachnoid cyst contains CSF. These appear most often in children, but they may also happen in adults.

Can a child get an arachnoid cyst as an adult?

It has been observed, though, that the condition sometimes runs in families. This means that those who develop such cysts may, in fact, have inherited a genetic predisposition for the condition. Generally, these are observed in children, but adults may have them too.