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[Cerebellopontine angle lipoma: a case report]
K Matsumoto1, K Kunishio, Y Yoshimoto
1Department of Neurological Surgery, Okayama University Medical School.
No Shinkei Geka. Neurological Surgery
|November 1, 1990
Summary
This case report details a rare cerebellopontine angle lipoma presenting with hearing loss and dizziness. Partial resection was necessary due to the tumor
Area of Science:
- Neurosurgery
- Neuropathology
Background:
- Cerebellopontine angle lipomas are rare intracranial tumors.
- They often present with slowly progressive focal neurological symptoms.
- Differential diagnosis includes other cerebellopontine angle tumors.
Observation:
- A 37-year-old male presented with left-sided hearing disturbance and dizziness.
- Computed tomography (CT) revealed a non-enhancing, low-density lesion in the left cerebellopontine angle.
- Magnetic resonance imaging (MRI) demonstrated a high signal intensity lesion on T1-weighted images.
Findings:
- The lipoma was adherent to the brainstem and cranial nerves.
- Intraoperative findings included significant hemorrhage.
- Complete tumor resection was not feasible due to adherence to critical neurovascular structures.
Implications:
- This case highlights the diagnostic challenges and surgical considerations for rare cerebellopontine angle lipomas.
- Accurate radiological assessment using CT and MRI is crucial for diagnosis and surgical planning.
- Management requires careful consideration of tumor location, adherence, and potential for hemorrhage.