koilonychia

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koilonychia

 [koi″lo-nik´e-ah]
dystrophy of the nails in which they are abnormally thin and concave from side to side, with the edges turned up.
Koilonychia. From Dorland's, 2000.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

koi·lo·nych·i·a

(koy'lō-nik'ē-ă),
A malformation of the nails in which the outer surface is concave; often associated with iron deficiency or softening by occupational contact with oils.
Synonym(s): spoon nail
[G. koilos, hollow, + onyx (onych-), nail]
Farlex Partner Medical Dictionary © Farlex 2012

spoon nail

A rare acquired nail dystrophy seen in bronchiectasis in which the nail bed undergoes atrophy and the nail acquires a central concavity.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

koi·lo·nych·i·a

(koy'lō-nik'ē-ă)
A malformation of the nails in which the outer surface is concave; often associated with iron deficiency or softening by occupational contact with oils.
Synonym(s): spoon nail.
[G. koilos, hollow, + onyx (onych-), nail]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

koilonychia

Thin, brittle, concave fingernails. This may result from iron deficiency ANAEMIA or injury to the nail bed. Koilonychia also occurs in the itchy skin disease LICHEN PLANUS and in the rare inherited condition dystrophic epidermolysis bullosa. From the Greek koilos , concave or hollow and onyx , a finger or toenail.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
Iron deficiency is also associated with koilonychias, which is a nail disease characterized by spoon-shaped nails. However, it is suggested that red meat be eaten only once a week to prevent ingesting too much saturated fat.
This is according to researchers at the University of Nottingham who have devised equations to identify the physical laws that govern nail growth, and used them to throw light on the causes of some of the most common nail problems, such as ingrown toe nails, spoon-shaped nails and pincer nails.
A It could be a fungal infection or spoon-shaped nails known as Koilonichia, caused by iron deficiency.
Spoon-shaped nails can also indicate this,O says nutritional advisor Laura Williams from Future Perfect (www.fperfect.com, call 020 7515 7630).
You have a condition called koilonychia - or thin, brittle, spoon-shaped nails. It is relatively common and can be associated with anaemia.