Transseptumpellucidumrostrostomy: anatomical considerations and neuroendoscopic approach

Area of Science:

• Neuroanatomy
• Neurosurgery
• Surgical Anatomy

Background:

• The rostral lamina of the corpus callosum is a critical anatomical landmark.
• Understanding its dimensions and relationship with surrounding structures is vital for neurosurgical procedures.
• Neuroendoscopy offers minimally invasive approaches to intraventricular pathologies.

Purpose of the Study:

• To confirm the consistent presence of the rostral lamina of the corpus callosum.
• To establish anatomical parameters for safe neuroendoscopic fenestration of the rostral lamina.
• To assess the feasibility of endoscopic communication between the lateral ventricle and the subcallosal cistern.

Main Methods:

• Detailed anatomical study using sagittal and axial brain sections.
• Quantitative analysis of measurements, including the relationship between the interventricular foramen and fornix column, and the rostral lamina.
• Statistical comparison of measurements between hemispheres and correlation analyses using F-test, Student t-test, and Pearson index.

Main Results:

• The rostral lamina was identified in all studied brains.
• No significant differences in measurements were found between the left and right hemispheres.
• Positive correlations were observed between key anatomical diameters, supporting reproducible measurements.

Conclusions:

• The rostral lamina is a reliable anatomical structure.
• Neuroendoscopic fenestration of the rostral lamina is a feasible and safe procedure.
• This technique facilitates safe communication between the lateral ventricle and the subcallosal cistern.