Related Experiment Videos
[Cerebellopontine angle lipoma--case report]
1Department of Neurosurgery, Nagoya City University Medical School, Japan.
No to Shinkei = Brain and Nerve
|June 1, 1993
Summary
This case report details an extremely rare cerebellopontine angle lipoma causing trigeminal neuralgia. Surgical removal was performed, highlighting the need for caution in cases with only hearing disturbance.
Area of Science:
- Neuro-oncology
- Neurosurgery
- Radiology
Background:
- Intracranial lipomas are rare tumors, with cerebellopontine angle (CPA) lipomas being exceptionally uncommon.
- This report focuses on a specific case of a right CPA lipoma.
Observation:
- A 47-year-old female presented with a year of right trigeminal neuralgia and demonstrated right 5th and 8th cranial nerve dysfunction.
- Magnetic Resonance Imaging (MRI) revealed a high-intensity mass in the right CPA, confirmed as lipoma using Dixon's technique (negative intensity on opposed phase).
- Computed Tomography (CT) showed the lesion as a very low-density area (-104 HU).
Findings:
- Subtotal tumor removal was achieved via right suboccipital craniectomy.
- Pathological examination confirmed the diagnosis of lipoma.
- Literature review on CPA lipomas, including clinical presentation, radiological characteristics, and management strategies, is discussed.
Implications:
- The study emphasizes the rarity of CPA lipomas and their potential to cause significant neurological deficits.
- Surgical intervention requires careful consideration, particularly in patients with isolated hearing disturbances, as surgery may exacerbate this symptom.
- This case contributes to the understanding of CPA lipoma management and associated risks.