Epicanthic fold

Epicanthic fold
Epicanthic fold
Epicanthicfold-highlighted.JPG
The epicanthic fold is the skin fold of the upper eyelid covering the inner corner of the eye, more often seen in "Mongoloid" people.[1]
Latin plica palpebronasalis
"Mongoloid" eye according to anthropologist Joseph Deniker

An epicanthic fold, epicanthal fold, or epicanthus is a skin fold of the upper eyelid, covering the inner corner (medial canthus) of the eye.

Other names for this trait include plica palpebronasalis,[2] palpebronasal fold,[3] and Mongolian eye fold.[4]

Contents

Factors

One of the primary facial features often closely associated with the epicanthic folds is the nose bridge; all else equal, a lower-based nose bridge is more likely to result in epicanthic folds, and vice versa.[1] There are various factors influencing whether someone has epicanthic folds, including race, age, and certain medical conditions.

Race

Mongoloids are more likely than Caucasoids to retain the epicanthic fold with age, although it varies demographically.[verification needed] Anthropologist Ashley Montagu wrote in 1988 that for some Mongoloids the "nose is flatter at the root (the miscalled bridge) and the slight fold of skin over the median part of the eye, the Epicanthic fold, is preserved."[1][dated info]

Age

Many fetuses lose their epicanthic folds after 3 to 6 months of gestation.[5][non-primary source needed]

Medical conditions

Medical conditions that cause the nasal bridge to not mature and project are associated with epicanthic folds. One of the characteristics of Down Syndrome is prominent epicanthic folds.[6] In Zellweger syndrome, epicanthic folds are prominent.[7] Other examples are fetal alcohol syndrome, phenylketonuria, and Turner syndrome.[8]

See also

References

  1. ^ a b c Montagu, A. (1989) Growing Young N.Y.: McGraw Hill pp. 40
  2. ^ "AllRefer Health - Epicanthal Folds (Plica Palpebronasalis)". AllRefer.com. http://health.allrefer.com/health/epicanthal-folds-info.html. Retrieved 2009-10-01. 
  3. ^ "Palpebronasal Fold - Medical Dictionary Search". Stedman's Medical Dictionary. 2006. http://www.medilexicon.com/medicaldictionary.php?s=palpebronasal+fold. Retrieved 2009-10-01. 
  4. ^ "Epicanthic fold". Online Encyclopaedia Britannica. 1995. http://www.uv.es/EBRIT/micro/micro_194_3.html. Retrieved 2009-10-01. 
  5. ^ Park, J.I. Modified Z-Epicanthoplasty in the Asian Eyelid. ARCH FACIAL PLAST SURG/VOL 2, JAN-MAR 2000.
  6. ^ Pham, V. (2010). COMMON OTOLARYNGOLOGICAL CONGENITAL ABNORMALITIES. UTMB, Dept. of Otolaryngology. [1]
  7. ^ Kalyanasundaram, S. (2010). Peroxisomal Disorder-Unusual Presentation as Failure to Thrive in Early Infancy. In Indian Journal of Pediatrics. 77:1151–1152
  8. ^ MedlinePlus Medical Encyclopedia

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См. также в других словарях:

  • epicanthic fold — noun Etymology: New Latin epicanthus epicanthic fold, from epi + canthus canthus Date: 1913 a prolongation of a fold of the skin of the upper eyelid over the inner angle or both angles of the eye …   New Collegiate Dictionary

  • epicanthic fold — noun a vertical fold of skin over the nasal canthus; normal for Mongolian peoples; sometimes occurs in Down s syndrome • Syn: ↑epicanthus • Hypernyms: ↑fold, ↑plica • Part Holonyms: ↑eye, ↑oculus, ↑ …   Useful english dictionary

  • epicanthic fold — epi·can·thic fold .ep ə .kan(t) thik n a prolongation of a fold of the skin of the upper eyelid over the inner angle or both angles of the eye * * * see epicanthus …   Medical dictionary

  • epicanthic fold — [ˌɛpɪ kanθɪk] noun a fold of skin from the upper eyelid covering the inner angle of the eye, typical in many peoples of eastern Asia …   English new terms dictionary

  • epicanthic fold — epicanthus …   The new mediacal dictionary

  • epicanthic fold —   Maka lilio …   English-Hawaiian dictionary

  • epicanthic — adj. pertaining to the epicanthus, pertaining to a fold of skin on the eyelid that is characteristic of Mongolian races …   English contemporary dictionary

  • mongolian fold — noun or mongoloid fold or mongolic fold Usage: usually capitalized M : epicanthic fold * * * epicanthus. [1910 15] * * * Mongolian fold, = epicant …   Useful english dictionary

  • Mongolian fold — noun see epicanthic fold * * * epicanthus. [1910 15] * * * Mongolian fold, = epicanthic fold. (Cf. ↑epicanthic fold) …   Useful english dictionary

  • ep|i|can|thic fold — «EHP uh KAN thihk», a fold of skin extending from the eyelid over the inner and sometimes outer corner of the eye; epicanthus: »The Mongolian “slant,” “slit,” or “oblique” eye is due to an overdeveloped epicanthic fold…partially covering the lash …   Useful english dictionary


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