Dictionary

danger triangle of the face en · NOUN

Meanings

1. The area of the face from the bridge of the nose to the corners of the mouth, in which infections can more easily spread to the brain due to venous connections.
   • Be cautious about carrying out any manipulative procedure on localized infections in the danger triangle of the face – between the nasolabial fold and upper lip; there is a danger of organisms entering the facial venous system, travelling retrogradely to the cavernous sinus, and causing septic thrombosis. 2007, R. M. Kirk, Marc C. Winslet, Essential General Surgical Operations, Elsevier Health Sciences, page 56:
   • […]made by the corners of the mouth with the apex between the eyes—the danger triangle of the face. 1938, Merit Badge Series, volumes 66–81:
   • Photograph of a 12-year-old girl illustrating the danger triangle of the face. Veins in this area communicate with the superior ophthalmic veins which drain into the cavernous sinus posterior to the orbit. 1980, Keith L. Moore, Clinically Oriented Anatomy, Williams & Wilkins, page 1061:

Synonyms

nasolabial triangle · danger triangle · triangle of death