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Choroid plexus papilloma in the posterior third ventricle: case report
1Department of Neurosurgery, Kitano Medical Research Institute and Hospital, Osaka, Japan.
Neurosurgery
|June 1, 1997
Summary
This study reports a rare choroid plexus papilloma (CPP) in the third ventricle, unusually attached to brain tissue rather than the choroid plexus. It is the smallest such intraventricular CPP documented.
Area of Science:
- Neuro-oncology
- Neurosurgery
- Pathology
Background:
- Choroid plexus papillomas (CPPs) are typically found attached to the choroid plexus within the brain's ventricles.
- Intraventricular tumors can cause significant neurological symptoms due to increased intracranial pressure.
Observation:
- A 42-year-old woman presented with symptoms of increased intracranial pressure.
- MRI revealed hydrocephalus and a small mass in the posterior third ventricle obstructing cerebrospinal fluid flow.
- Surgical and histopathological examination confirmed a CPP attached to the brain parenchyma, not the choroid plexus.
Findings:
- This represents a highly unusual choroid plexus papilloma (CPP) lacking attachment to the choroid plexus.
- The tumor was located on the posterior wall of the third ventricle.
- This is the first reported case of a CPP in this location without choroid plexus connection and the smallest intraventricular CPP surgically verified.
Implications:
- Highlights the diverse origins and presentations of intraventricular tumors.
- Challenges the typical understanding of CPP development and attachment points.
- Contributes to the understanding of rare neurosurgical pathologies and their management.