Intraventricular simple cyst

Discussion:

"Intraventricular simple cyst" describes a cystic lesion in the cranial ventricles that follows CSF on all imaging modalities and phases/sequences. The lesion may be lined by arachnoid or ependymal cells, but this is indistinguishable on imaging. Patients are often asymptomatic at presentation, but hydrocephalus can occur.

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