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Endoscopic Approach for Colloid Cyst Resection
Published on: May 23, 2025
229
Transcallosal Suprachoroidal Approach for a Small Third Ventricular Colloid Cyst.
Hitesh I S Rai1, Shashwat Mishra1, Roshan Sahu1
1Department of Neurosurgery and Gamma-Knife, All India Institute of Medical Sciences, New Delhi, India.
Neurology India
|May 9, 2022
Summary
The suprachoroidal transcallosal approach offers a minimally invasive technique for removing colloid cysts near the foramen of Monro, reducing risks associated with traditional methods.
Area of Science:
- Neurosurgery
- Minimally Invasive Techniques
- Neuroanatomy
Background:
- The interhemispheric transcallosal approach is an effective pathway for accessing third ventricle lesions.
- This approach requires detailed anatomical knowledge and technical expertise to manage inherent risks.
Observation:
- A 16-year-old male presented with symptoms suggestive of a colloid cyst at the foramen of Monro.
- Radiological imaging confirmed a subcentimeteric colloid cyst.
- The patient experienced worsening headaches, speech arrest, and blank stares over six years.
Findings:
- A suprachoroidal transcallosal approach was utilized to access and completely excise the colloid cyst.
- The surgical technique preserved deep venous structures.
- Post-operative recovery was uneventful with complete cyst excision confirmed by radiology.
Implications:
- The transcallosal approach provides a minimally invasive, natural corridor, avoiding cortical incisions.
- The suprachoroidal technique minimizes risks such as thalamostriate vein injury, basal ganglia stroke, and hemiparesis.
