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Intrapontomesencephalic colloid cyst: an unusual location. Case report
S Inci1, N Al-Rousan, F Söylemezoglu
1Department of Neurosurgery, University of Hacettepe, Ankara, Turkey. servet@mailcity.com
Journal of Neurosurgery
|January 9, 2001
Summary
A rare brainstem colloid cyst was successfully removed in a 15-year-old patient. This case highlights the possibility of surgical intervention for unusual colloid cyst locations, leading to excellent recovery.
Area of Science:
- Neurosurgery
- Neuropathology
- Neuroimaging
Background:
- Colloid cysts typically occur in the third ventricle.
- Brainstem colloid cysts are exceptionally rare, posing diagnostic and surgical challenges.
Observation:
- A 15-year-old female presented with headache and diplopia.
- Neurological exam revealed sixth nerve palsy and mild hemiparesis.
- Radiology identified an intraparenchymal pontomesencephalic cystic mass.
Findings:
- The cystic mass was surgically excised using a pterional transsylvian approach.
- Histopathology confirmed a typical colloid cyst.
- This represents the first reported total surgical excision of an intraparenchymal upper brainstem colloid cyst.
Implications:
- Demonstrates the feasibility and efficacy of surgical removal for rare brainstem colloid cysts.
- Contributes to the understanding of neuroepithelial cyst origins in the brainstem.
- Offers a potential treatment pathway for patients with similar rare intracranial lesions.