Light up the "no-man's land" on the brain stem

Area of Science:

• Neurosurgery
• Skull Base Surgery
• Cranial Fossa Anatomy

Background:

• The ventral brain stem is anatomically complex, bordered by the clivus, brain stem, petrous pyramids, and cranial nerves III-XII.
• This region, within the deep posterior cranial fossa, is prone to extra-axial pathologies like aneurysms and tumors (meningiomas, chordomas, etc.).

Observation:

• Historically, surgical access to the ventral brain stem has been severely limited, termed a "no-man's land" due to deep location and surgical blindness.
• Recent advancements in skull base surgery techniques are progressively overcoming these access challenges.

Findings:

• This paper provides a comprehensive review of the historical development of skull base surgery.
• It details current surgical techniques employed for accessing the ventral brain stem and its surrounding pathologies.
• The review also discusses future prospects and innovations in the field.

Implications:

• Improved surgical access to the ventral brain stem enhances treatment options for complex pathologies.
• Advancements in skull base surgery are transforming the management of previously inaccessible tumors and vascular lesions.
• The evolution of skull base surgery promises better patient outcomes and expanded therapeutic possibilities.