The third ventricle. Normal anatomy and changes in some pathological conditions

Area of Science:

• Neuroanatomy
• Neuroradiology

Background:

• The anterior inferior third ventricle and optic recess anatomy are not well-documented in neuroradiological literature.
• Understanding normal anatomy is essential for diagnosing pathologies affecting the third ventricle.

Purpose of the Study:

• To anatomically study the normal anterior inferior third ventricle floor and optic recess.
• To correlate anatomical findings with radiological appearance.
• To illustrate detailed anatomy of the optic recess and sulcus of Monro.

Main Methods:

• Anatomical analysis of specimens and casts.
• Correlation with ventriculograms using water-soluble contrast media.

Main Results:

• Detailed illustration of the optic recess and sulcus of Monro.
• Demonstration of optic recess changes in hydrocephalus.
• Presentation of third ventricle floor deformities caused by posterior fossa tumors and hydrocephalus.

Conclusions:

• The study provides a detailed anatomical and radiological description of the third ventricle floor and optic recess.
• This information is vital for interpreting neuroradiological images, particularly in cases of hydrocephalus and tumors.