onycholysis


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onycholysis

 [on″ĭ-kol´ĭ-sis]
loosening or separation of a nail from its bed.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

on·y·chol·y·sis

(on'i-kol'i-sis), Avoid the mispronunciation oncholy'sis. Do not confuse this word with oncolysis.
Loosening of the nails, beginning at the free border, and usually incomplete.
[onycho- + G. lysis, loosening]
Farlex Partner Medical Dictionary © Farlex 2012

onycholysis

(ŏn′ĭ-kŏl′ĭ-sĭs)
n.
The separation or loosening of a fingernail or toenail from its nail bed.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

on·y·chol·y·sis

(on'i-kol'i-sis)
Loosening of the nails, beginning at the free border, and usually incomplete.
[onycho- + G. lysis, loosening]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

onycholysis

Loosening or separating of the nail from its bed.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Onycholysis

The separation of a nail from its underlying bed. Onycholysis is a common symptom of candidal infections of the nail or of exposure to harsh chemicals and detergents.
Mentioned in: Nail Removal
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Significant improvement for hyperkeratosis and onycholysis, moderate improvement for oil drops, and slight improvement for pitting were observed.
Nail involvement in psoriasis usually is divided into two major groups: (a) signs of involvement of nail matrix including pitting, leukonychia, red spots of the lunula, transverse grooves (Beau's lines), and crumbling of the nail plate and (b) signs of involvement of the nail bed which present as oil-drop discoloration, splinter hemorrhages, subungual hyperkeratosis, and onycholysis [5].
A characteristic feature of psoriasis of the nails is onycholysis with a yellowish brownish hue resembling that of an oil spot and caused by elevation of the nail plate by a psoriatic plaque in the nail bed.
The most common clinical signs of SCC of the nail unit are, in decreasing order, subungual hyperkeratosis, onycholysis, oozing, and nail plate destruction.[sup][2] The tumors are usually growing slowly, simulating other benign conditions, such as chronic paronychia, onychomycosis, pyogenic granuloma, or verruca vulgaris.
Nail changes, which may be observed following drug use, include hyperpigmentation, onycholysis, and onychomadesis.
Nail changes, including nail dystrophy, subungual hyperkeratosis and onycholysis are common among patients with psoriasis, albeit being less frequent in patients without arthritis (3,20,33).
(2) POPP is considered to be an uncommon subset of psoriatic arthritis that is characterized by psoriatic onychodystrophy, onycholysis, connective tissue thickening above the distal phalanx as well as specific radiologic changes such as periosteal reaction and bone erosions of the distal phalanges.
We have reported the case of a male patient who developed distal onycholysis after receiving 100 mg diclofenac and exposure to UV light.
Over-hydration could cause onycholysis (separation of the nail plate from the nail bed or lifting of the nail).
Allergic contact dermatitis and onycholysis from hydroxylamine sulphate in colour developer.
In pseudo (apparent) leuconychia, there is involvement of subungual tissue due to onycholysis or subungual hyperkeratosis or pathology of matrix or nailbed instead of nailplate2.