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. 2023 Dec 15;12(24):7717. doi: 10.3390/jcm12247717

Figure 3.

Figure 3

Schema of important arteries and distributions in skull base meningioma. (A) Distribution of the dorsal meningeal artery (DMA): This artery usually arises from the meningohypophyseal trunk and courses inferiorly along the dorsal side of the clivus and partially reaches the inferior part of the clivus. (B) Distribution of the ascending pharyngeal artery (APA): This artery usually arises from the external carotid artery and passes superiorly to distribute around the foramen magnum and lower clivus as the neuromeningeal trunk of the APA. (C) Distribution of the tentorial artery (TA): The medial branch usually arises from the meningohypophyseal trunk and the marginal branch arises from the inferior lateral trunk, passing posteriorly along the tentorium and distributing around the tentorium. (D) Distribution of the petrosal branch (PB): This artery arises from the middle meningeal artery at the foramen spinosum and passes medially to the petrous apex, where it is believed to be distributed around the petrous apex and part of the tentorium. The anterior and posterior branches of the MMA are shown in light red. (E) Summary of the four vessels: Red, DMA; orange, APA; green, TA; blue, PB.