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  • Title: The meningohypophyseal trunk and its blood supply to different intracranial structures. An anatomical study.
    Author: Reisch R, Vutskits L, Patonay L, Fries G.
    Journal: Minim Invasive Neurosurg; 1996 Sep; 39(3):78-81. PubMed ID: 8892286.
    Abstract:
    50 meningohypophyseal trunks of the intracavernous internal carotid artery were studied in 25 human cadavers. Special attention was given to the main variations of branching patterns of this trunk. The dorsal meningeal arteries were found in all cases and three typical variations were observed in their origins and courses: a prominent medial branch (52%), a bifurcating type (38%) or a single lateral branch was present (10%). The tentorial artery of Bernasconi-Cassinari arised as a single branch in 64% of the cases, while in 36% two or more branches took a direct origin from the main trunk. The inferior hypophyseal artery was prominent in 82% of the cases. The inferolateral trunk had a common origin with the meningohypophyseal trunk in 8% of our dissections. A large number of anastomoses between these vessels was observed. As a number of tumorous and vascular pathologies, which can be treated with microsurgical techniques, take their origin from the cavernous sinus, the knowledge of the smaller vessels arising from the intracavernous internal carotid artery as well as their main variations is important.
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