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MRI of cerebellopontine angle choroid plexus papilloma
E Tasdemiroglu1, M H Awh, J W Walsh
1Veterans Affairs Medical Center, Neurosurgery Service, Lexington, KY 40511, USA.
Abstract:
We present a cerebellopontine angle choroid plexus papilloma that originated from the tuft of choroid plexus of the fourth ventricle protruding from the foramen of Luschka. MRI and CT did not establish the diagnosis, but the tumor was shown histopathologically to be a choroid plexus papilloma. Distinct features of the tumor on MRI are described and the differential diagnosis of other cerebellopontine angle tumors is discussed.
Insights
A rare cerebellopontine angle choroid plexus papilloma, originating from the fourth ventricle, was diagnosed histopathologically. Imaging like MRI and CT did not confirm this rare tumor.
Area of Science:
- Neuro-oncology
- Neurosurgery
- Radiology
Background:
- Choroid plexus papillomas (CPPs) are rare tumors that arise from the choroid plexus epithelium.
- Cerebellopontine angle (CPA) is a common location for various tumors, but CPPs are infrequent in this region.
Observation:
- A CPA choroid plexus papilloma originating from the fourth ventricle's choroid plexus and protruding through the foramen of Luschka was identified.
- Magnetic resonance imaging (MRI) and computed tomography (CT) scans were insufficient for definitive diagnosis.
- Histopathological examination confirmed the tumor as a choroid plexus papilloma.
Findings:
- Distinct MRI features of the CPA choroid plexus papilloma were observed.
- The study details the specific imaging characteristics that can aid in identifying this rare tumor type.
Implications:
- Accurate diagnosis of CPA tumors relies on a combination of imaging and histopathology.
- Understanding the distinct features of choroid plexus papillomas on MRI is crucial for differential diagnosis in the CPA region.
- This case highlights the importance of considering rare pathologies in the cerebellopontine angle.