Fig. 5. Type 4 facial artery variation and external carotid artery angiography of a dural arteriovenous fistula patient aged 57 years old. For this patient, only the facial artery’s inferior labial artery branches, indicated by the yellow arrow, can be observed, devoid of other branches. (A) Anteroposterior view. (B) Lateral view.

Anat Cell Biol 2023;56:211~218 https://doi.org/10.5115/acb.22.262

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