Intraventricular neoplasms and lesions

Last revised by Francis Deng on 5 Aug 2023

Intraventricular neoplasms are rare and arise from periventricular structures such as the walls of the ventricular system, the septum pellucidum and the choroid plexus. Many tumor types arise from or can bulge into the ventricular system, although there are certain lesions that are relatively restricted to ventricles. A number of factors assist in defining the differential diagnosis, both radiological and clinical, including where the lesion is positioned within the ventricle as well as age and any associated conditions 4.

Neoplasms of the ventri­cular wall and septum pellucidum
Neoplasms of the choroid plexus

See: choroid plexus tumors.

Non-neoplastic lesions 

See also

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Cases and figures

  • Case 1: central neurocytoma
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  • Case 2: meningioma
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  • Case 3: subependymal giant cell astrocytoma
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  • Case 4: colloid cyst
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  • Case 5: intraventricular B cell lymphoma
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  • Case 6: intraventricular ganglioglioma
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  • Case 7: GBM with intraventricular extension
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  • Case 8: intraventricular metastases
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  • Case 9: intraventricular neurocysticercosis
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