It is well known that geometric and combined type. In our clinical experiences, TND ting-dominant type. However, irregular deep pits are without other dermatological or medical problems is not known to occur with atopic dermatitis,10 and one of the uncommon and needs to be investigated in several clinical patients with atopic dermatitis had the shallow fissure- aspects.
Other concomitant diseases included Beh- Twenty-nail dystrophy is an ill-defined entity. Selection bias pathic atrophy of the nails. In addition, the the nails that would be the nail manifestation of lichen subtype classification system was somewhat subjective. Furthermore, lichen planus limited to the nails is uncom- The clinical characteristic of each subtype of TND mon, and the initial nail involvement is followed, in many showed differences between child—adolescent-onset TND cases, by the development of typical lesions elsewhere.
In addition, the deep fissure-domi- In this study, the cases with nail dystrophy involving all nant type was more common in adult-onset TND, and 20 nails are divided by their morphological findings of the pitting-dominant type was more common in child- the nail plates: atrophic, hypertrophic, pitting-dominant, adolescent-onset TND Fig.
The mean disease dura- shallow fissure-dominant, and deep fissure-dominant tion of each subtype was analyzed; the pitting-dominant types. Because the disease duration is associated with study showed a mean age of onset of In severity, the child—adolescent-onset TND would be con- females, the peak age of onset was in their 40s, whereas sidered relatively less severe than the adult-onset TND.
In addition, child—adolescent- Further study of the treatment response in each of the onset TND accounted for only There has been limited information for TND. The mean age of Research Program through the NRF funded by the Minis- onset showed a significant difference between males and try of Education, Science and Technology females Twenty-nail vitiligo,15,16 alopecia areata,17,18 alopecia universalis,5 dystrophy of childhood.
Arch Dermatol ; 73— Twenty nail dystrophy trachyonychia: an 12 Baran R, Dawber R. Twenty-nail dystrophy of overview. J Dermatol ; — Baran — Oxford: Blackwell Science, Longitudinal nail biopsy: utility in nail dystrophy. Twenty-nail dystrophy of Dermatol Surg ; — COVID is an emerging, rapidly evolving situation.
Menu Search Home Diseases Twenty-nail dystrophy. You can help advance rare disease research! This site is in-development and may not reflect the final version. Preview the new GARD site. Other Names:. Autosomal dominant nail dysplasia; Idiopathic trachyonychia; Trachyonychia; Autosomal dominant nail dysplasia; Idiopathic trachyonychia; Trachyonychia; Sandpaper nails; Onychodystrophy totalis; Twenty nail dystrophy; Nail disorder, nonsyndromic congenital 1 See More. Summary Summary.
Symptoms Symptoms. Showing of 6 View All. Thick nail. Thickened nails. Detachment of nail. Signs and symptoms worsen slowly with time. Thin nails. Do you have more information about symptoms of this disease? We want to hear from you.
Do you have updated information on this disease? Cause Cause. The cause of twenty-nail dystrophy is unknown. In some cases, twenty-nail dystrophy has been diagnosed in people who also have another condition such as alopecia areata , or psoriasis. Find a Specialist Find a Specialist. Healthcare Resources To find a medical professional who specializes in genetics, you can ask your doctor for a referral or you can search for one yourself.
You can also learn more about genetic consultations from MedlinePlus Genetics. In some cases an autosomal dominant pattern of inheritance has been found; in one report twenty-nail dystrophy occurred in 4 males in 3 successive generations. Other cases of twenty-nail dystrophy are of unknown origin and begin gradually in early childhood. These cases tend to be self-limiting and may resolve slowly with age. There is no specific treatment for twenty-nail dystrophy.
It is a very difficult condition to treat and often results are unsatisfactory. Some treatments that have been tried include:. DermNet NZ does not provide an online consultation service. Moreover, such an TND nails are rough sandpaper-like , luster- intervention was difficult to repeat in a young less, brittle, split, and have prominent longitu- child. Most often than the role of oral griseofulvin in lichen planus- not, it is an exclusive manifestation without related TND, either alone or in combination any precursor.
Therapeutic modal- are afflicted. TND is associated with several ities such as intralesional triamcinolone6 and autoimmune disorders6 such as vitiligo6,7 and local psoralen-UV-A13 therapy have been tried. In fact, histopathology that have never been made use of in the past. Antifungal agents: Figure 1. Twenty-nail dys- unapproved uses, dosages, or indications. Clin trophy trachyonychia Dermatol. Griseofulvin therapy in lichen planus: a double-blind con- trolled trial.
Br J Dermatol. Histopathological evaluation of griseofulvin therapy in lichen planus: a double-blind con- trolled study. Twenty- nail dystrophy of childhood. Arch Dermatol. Twenty- nail dystrophy trachyonychia caused by lichen planus in a patient with alopecia universalis and ichthyosis vulgaris.
J Am Acad Dermatol. An association of Figure 2. Both hyperkera- twenty-nail dystrophy with vitiligo. J Dermatol.
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