Lateral Nasal Vein

Description

Arising from the superficial venous plexus over the nasal sidewall, the lateral nasal vein courses superiorly and laterally along the dorsolateral nose toward the medial canthus, where it communicates with the angular vein at the root of the nose. Medial to it lie the dorsum and alar cartilages, while laterally it parallels the nasofacial groove overlying the maxilla and the superior fibers of the levator labii superioris alaeque nasi. Inferiorly, small venules drain the ala and vestibular skin, and posterior connections reach the deeper venous network adjacent to the nasal cavity. Blue vascular channels sit superficial to the facial muscles, with the bony orbit and piriform aperture providing fixed skeletal landmarks. Attention to the lateral nasal vein matters because it is a surface marker for the angular vein and the facial vein, a route that can communicate with the ophthalmic veins through valveless connections near the medial orbit. This is why infections from the nasal vestibule or manipulations around the alar base can, in rare cases, propagate toward the cavernous sinus via the ophthalmic venous pathway. It also frames safe planes for nasolabial fold filler, alar base surgery, and flap design in rhinoplasty and facial reconstruction. Small vessel. Real consequences. Use this illustration to teach superficial venous drainage of the face in head and neck anatomy, to clarify venous communications around the medial canthus in clinical correlations, or to support surgical and aesthetic medicine content that requires accurate mapping of the lateral nasal vein and its venular tributaries. It fits well in ENT, maxillofacial, and ophthalmology education where nasal and periorbital complications intersect. Anatomical accuracy verified by SciePro's Medical Advisory Board.