hyponychium


Also found in: Medical.

hyponychium

[hī′päŋ·kē·əm]
(histology)
The thickened stratum corneum of the epidermis, which lies under the free edge of the nail.
References in periodicals archive ?
They also allow for spread to the lateral nail folds and hyponychium. They even penetrate nail polish, said Dr.
Width of the furrow indicates duration of the illness and is seen in many systemic disorders.18 The separation of nail plate from nail bed is known as onycholysis.19 The cause of onycholysis in psychiatric patients is likely to be trauma to the hyponychium leading to separation of nail plate from the nail bed.
His fingernails also showed punctate leukonychia; small, blackish linear streaks between hyperpigmented bands; and hyperkeratosis in the hyponychium, which obliterated the distal groove, again predominantly on the right hand (Figure 1, informed consent has been obtained from the patient).
rubrum in this case the fungus invades the hyponychium at the distal lateral part of the nail bed or arise from under the nail fold and causes discoloration, thickening, and detachment from the nail bed and it is possible to expands to tinea pedis.
Twenty-nine chapters are: trichoscopy patterns; normal scalp; instruments for scalp dermoscopy; nonscarring alopecias; primary scarring alopecias; hair shaft disorders; pediatric hair disorders; dermoscopy of the black scalp; hair weathering; systemic diseases; inflammatory scalp disorders; infections; parasitoses of the scalp; body hair disorders; hair root evaluation; dermoscopy-guided biopsies; ex vivo dermoscopy; dermoscopy in canine and feline alopecia; dermoscopy of the nail plate; dermoscopy of the proximal nail fold; dermoscopy of the hyponychium; dermoscopy of the distal edge of the nail plate; inflammatory nail disorders; traumatic nail disorders; brittle nails; onychomycosis; nail tumors; melanonychia; connective tissue disorders.
The fingernail hyponychium has a higher concentration of lymphatics than any other dermal region of the body.
All subjects were instructed to apply one drop (0.05 ml) of Lindioil or olive oil onto the nail plate folds and hyponychium of affected nails twice daily (morning and before bed).
(4) The most common of these is invasion of the nail plate from the hyponychium (distal-lateral-subungual owchomycosis) (Figure 2).
Several patterns of nail plate invasion have been described.4 The most common of these is invasion of the nail plate from the hyponychium (distal-lateral-subungual onychomycosis) (Figure 2).
Each nail was fully covered with a laser beam, including the areas of the hyponychium and the proximal and lateral nail folds.
Ideally, the mediator layer would function as the eponychium (cuticle) and hyponychium that comprise the junction between the skin stratum corneum and the base of the nail plate [138].
At the tip of the digit the nail plate detaches from the underlying tissues at the hyponychium. Proximally and laterally, the nail plate is surrounded by the nail folds, which protect the matrix from the environment.