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 tumour 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 tumours.
- intraventricular meningioma
- intraventricular metastasis
- pilocytic astrocytoma
- glioblastoma 3
- intraventricular CNS lymphoma
- primitive neuroectodermal tumour
- intraventricular teratoma
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- 2. Wilson DH, Gardner WJ. Intraventricular tumours: syndrome of the trigone. Can Med Assoc J. 1964;91 : 710-1. - Free text at pubmed - Pubmed citation
- 3. Park P, Choksi VR, Gala VC et-al. Well-circumscribed, minimally enhancing glioblastoma multiforme of the trigone: a case report and review of the literature. AJNR Am J Neuroradiol. 26 (6): 1475-8. AJNR Am J Neuroradiol (full text) - Pubmed citation
- 4. Smith A, Smirniotopoulos J, Horkanyne-Szakaly I. From the Radiologic Pathology Archives: Intraventricular Neoplasms: Radiologic-Pathologic Correlation. Radiographics. 2013;33 (1): 21-43. Radiographics (full text) - doi:10.1148/rg.331125192