Nasal bridge

The nasal bridge is the upper, bony part of the human nose, which overlies the nasal bones.

Dysmorphology

Low-rooted nasal bridges are closely associated with epicanthic folds. A lower nasal bridge is more likely to cause an epicanthic fold, and vice versa.[1]

A lower or higher than average nasal bridge can be a sign of various genetic disorders, such as fetal alcohol syndrome. A flat nasal bridge can be a sign of Down syndrome (Trisomy 21), Fragile X syndrome, or 48,XXXY variant Klinefelter syndrome.[2]

An appearance of a widened nasal bridge can be seen with dystopia canthorum, which is a lateral displacement of the inner canthi of the eyes.[3] Dystopia canthorum is associated with Waardenburg syndrome.[4]

See also

References

  1. Montagu, A. (1989) Growing Young N.Y.: McGraw Hill pp. 40
  2. Klinefelter Syndrome Clinical Presentation
  3. Genetic Hearing Loss Archived 2013-02-17 at the Wayback Machine from UTMB, Dept. of Otolaryngology. DATE: March 17, 2004. RESIDENT PHYSICIAN: Jing Shen. FACULTY PHYSICIAN: Ronald W. Deskin, MD. SERIES EDITORS: Francis B. Quinn, Jr., MD and Matthew W. Ryan, MD.
  4. Tagra S, Talwar AK, Walia RL, Sidhu P (2006). "Waardenburg syndrome". Indian J Dermatol Venereol Leprol. 72 (4): 326. doi:10.4103/0378-6323.26718. PMID 16880590.


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