Videodermoscopy of the hyponychium in nail bed psoriasis

Iorizzo, Matilde; Dahdah, Maurice J.; Vincenzi, Colombina; Tosti, Antonella

doi:10.1016/j.jaad.2007.11.026

Cited by 72 publications

(85 citation statements)

References 6 publications

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“…Dermoscopy of the hyponychium at high magnification is widely utilized to confirm the diagnosis of nail psoriasis, where it shows typical irregularly distributed, dilated, tortuous, and glomerulus-shaped capillaries [46]. Capillary density is positively correlated with disease severity and response to treatment.…”

Section: Dermoscopy Of the Hyponychiummentioning

confidence: 99%

Dermoscopy in the Evaluation of Nail Disorders

Alessandrini

Starace

Piraccini³

2017

Skin Appendage Disord

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Nail dermoscopy was initially used only in the assessment of nail pigmentation, but now it is widely utilized for the evaluation of many nail disorders. In daily practice, dermoscopy may confirm clinical diagnoses and guides in the management of nail diseases and treatments, permitting a better visualization of symptoms. Dry dermoscopy is required for evaluation of the nail plate surface, while gel as an interface is necessary for assessment of nail pigmentation and onycholysis, as well as for the evaluation of the distal nail margin. In this review, we describe the dermoscopic features of the most important nail disorders, looking at the different areas of the nail. Dermatoscopic changes that usually accompany specific nail diseases are also reviewed.

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Section: Dermoscopy Of the Hyponychiummentioning

confidence: 99%

Dermoscopy in the Evaluation of Nail Disorders

Alessandrini

Starace

Piraccini³

2017

Skin Appendage Disord

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“…Dermoscopy and videodermoscopy, generally used in describing benign and malignant tumoral skin lesions, were reported as being non-invasive, quickly applied, and easy-to-use methods that may aid in diagnosing nail psoriasis [7][8][9][10]. Capillaroscopy, usually used to study the microcirculation in collagen disease, can also be used to detect psoriasis induced microvascular changes, such as decreased capillary density and avascular areas in the periungual area [11].…”

Section: Introductionmentioning

confidence: 99%

High-frequency sonography in the evaluation of nail psoriasis.

et al. 2016

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Aim: To evaluate the morphostructural aspects and nail vascularity in the nail unit of patients with psoriasis, and to evaluate whether there are differences among psoriatic patients with and without nail involvement. Material and methods: Nail plates and nail bed changes, nailfold vessel resistance index (NVRI), power and color Doppler blood flow appearances were investigated in 23 patients with moderate-to-severe psoriasis, with and without nail involvement, and compared to those of 11 healthy participants. Results: Ventral nail plate deposits were present only in psoriasis patients. Irregular or totally fused nail plates and increased nail plate thickness was frequently observed in psoriasis patients compared to controls. NVRI was increased in psoriatic patients' nails compared to controls (0.62 vs. 0.57, p<0.0001). In the psoriasis patient group there was significant statistical difference in NVRI in patients with nail involvement compared to those without (0.66 vs. 0.55, p<0.0001). Conclusions: High-frequency gray scale sonography provides valuable information regarding morphostructural changes in nail unit structure in patients with psoriasis. Power Doppler imaging enables blood flow assessment in psoriasis nail induced changes.

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“…Frequently, more than one nail is involved and the fingernails are affected more often than the toenails [3,4] . These findings can be helpful for the diagnosis and some of them, for example hyponychial dilated capillaries, can correlate with disease severity and with response to treatment [2] . Red spots in the lunulae, so-called mottled lunulae, have been reported in psoriasis, alopecia areata, lichen planus, and rheumatoid arthritis.…”

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confidence: 99%