The meningohypophyseal trunk: Encyclopedic review

The meningohypophyseal trunk is a small but constant branch of the cavernous segment of the internal carotid artery supplying the sellar and parasellar region. Despite its clinical relevance, its anatomy and variations are often underrepresented in concise anatomical reviews. The present work focuses on the meningohypophyseal trunk encyclopedic review. The meningohypophyseal trunk has a characteristic branching pattern and important anastomotic connections that are critical in skull base surgery and endovascular procedures. • The paper reviews the anatomy and branching pattern of the meningohypophyseal trunk. • Describes common anatomical variations of the meningohypophyseal trunk. • Emphasizes the clinical relevance of the meningohypophyseal trunk in skull base pathology.