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Aim:The incidence and spectrum of nail abnormalities in children differ from adults. The aim of this study is to investigate the frequency and spectrum of nail abnormalities in children and adolescents admitted to a dermatology outpatient clinic.Materials and Methods:This cross-sectional study included 600 patients under the age of 18 who presented at a dermatology outpatient clinic with various dermatological complaints between March and May 2018.Results:In this study, among 600 patients; 325 (54.16%) were female and 275 (45.84%) were male. The mean age was 9.18±5.12 years (1 month to 17 years). Nail abnormalities were present in 226 patients of whom 131 (58%) were female and 95 (42%) were male. The rate of nail abnormalities was 37.66% (226/600) among the study group. The number of nail abnormalities detected was 288 and the number of abnormality types was 23. The most common group of nail abnormalities were surface (18.16%) and colour (16.50%) changes. The most common nail abnormalities were leukonychia (16.50%), onychoschizia (6.5%), and onychophagia/onychotillomania (6.5%). Fingernail abnormalities were significantly higher in males than females. Leukonychia and onychophagia/onychotillomania were significantly higher in males than females. The rate of patients observed with ungual complaints among the patients with nail abnormalities was 10.61% (24/226).Conclusion:Nail abnormalities are very common in childhood. Although patients do not have a primary complaint, evaluation of the nails during physical examination may prevent the occurrence of permanent damage to the nails and stop the spread of infectious diseases to other nails.

Aim: The incidence and spectrum of nail abnormalities in children differ from adults. The aim of this study is to investigate the frequency and spectrum of nail abnormalities in children and adolescents admitted to a dermatology outpatient clinic. Materials and Methods: This cross-sectional study included 600 patients under the age of 18 who presented at a dermatology outpatient clinic with various dermatological complaints between March and May 2018. Results: In this study, among 600 patients; 325 (54.16%) were female and 275 (45.84%) were male. The mean age was 9.18±5.12 years (1 month to 17 years). Nail abnormalities were present in 226 patients of whom 131 (58%) were female and 95 (42%) were male. The rate of nail abnormalities was 37.66% (226/600) among the study group. The number of nail abnormalities detected was 288 and the number of abnormality types was 23. The most common group of nail abnormalities were surface (18.16%) and colour (16.50%) changes. The most common nail abnormalities were leukonychia (16.50%), onychoschizia (6.5%), and onychophagia/onychotillomania (6.5%). Fingernail abnormalities were significantly higher in males than females. Leukonychia and onychophagia/onychotillomania were significantly higher in males than females. The rate of patients observed with ungual complaints among the patients with nail abnormalities was 10.61% (24/226). Conclusion: Nail abnormalities are very common in childhood. Although patients do not have a primary complaint, evaluation of the nails during physical examination may prevent the occurrence of permanent damage to the nails and stop the spread of infectious diseases to other nails. [ABSTRACT FROM AUTHOR]

Objective It has been shown that nail involvement in psoriasis is associated with systemic enthesopathy. Our objective was to evaluate the association of nail involvement and enthesopathy at distal interphalangeal joint (DIP) level in psoriasis (PsO) and psoriatic arthritis (PsA) patients. Methods Consecutive patients (54 PsO and 56 PsA) seen at the outpatients clinic in this cross-sectional study were included. All patients underwent both clinical and ultrasound (US) assessment on the same day. Results US revealed enthesopathy in at least 1 DIP joint in 9 patients with PsO (17%, 95% CI: 8–29%) and in 18 patients with PsA (32%, 95% CI: 20–46%). US extensor tendon enthesopathy was detected in a higher proportion of fingers with clinical nail involvement compared with fingers without clinical nail involvement, both in PsO and PsA patients (61.2% vs 16.8%, p < 0.0001 and 60.1% vs 22%, p < 0.0001, respectively). Among patients with PsO, 20% (95% CI: 7–41%) and 14% (95% CI: 4–32%) of those with and without clinical nail involvement showed enthesopathy on US examination, respectively ( p = 0.54). Among PsA patients, the prevalence of enthesopathy was 30% (95% CI: 15–49%) for patients with clinical nail involvement and 35% (95% CI: 17–56%) for those without nail involvement ( p = 0.71). Conclusion Nail disease was associated with DIP US enthesopathy. There was a significant increased prevalence of extensor tendon enthesopathy in fingers with involved nails both in PsO and PsA, although no association was found between nail involvement and extensor tendon enthesopathy at patients’ level. These features might support the nail-entheseal pathogenesis theory at DIP level. [ABSTRACT FROM AUTHOR]