Endoscope-assisted resection of a brainstem cavernoma.

Area of Science:

• Neurosurgery
• Neurology
• Vascular Malformations

Background:

• Brainstem cavernomas present significant surgical challenges due to their critical location.
• Recurrent cavernomas are particularly difficult due to prior surgical changes like scarring and adhesions.
• Developmental venous anomalies (DVAs) associated with cavernomas add complexity to surgical planning.

Purpose of the Study:

• To describe a minimally invasive surgical technique for recurrent brainstem cavernomas.
• To demonstrate the feasibility of preserving an associated DVA during resection.
• To highlight the utility of endoscopic assistance in complex neurosurgical procedures.

Main Methods:

• A 38-year-old female patient with a large recurrent brainstem cavernoma and an associated DVA was treated.
• The procedure involved decompression in the semisitting position followed by endoscopic-assisted resection.
• The surgical approach aimed for complete cavernoma resection while preserving the DVA.

Main Results:

• Complete resection of the recurrent brainstem cavernoma was achieved.
• The associated developmental venous anomaly was successfully preserved.
• The patient underwent a challenging but successful surgical intervention.

Conclusions:

• Endoscopic-assisted resection in the semisitting position is a viable and effective technique for managing recurrent brainstem cavernomas.
• This approach allows for complete tumor removal while safeguarding critical neurovascular structures like DVAs.
• Minimally invasive techniques can improve outcomes in complex neurosurgical cases involving eloquent brain regions.