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J Eur Acad Dermatol Venereol. 2018 Dec;32(12):2142-2148. doi: 10.1111/jdv.14996. Epub 2018 May 7.

Dermoscopic features of melanocytic skin lesions in Greek children and adolescents and their association with environmental factors and skin types.

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1
First Department of Dermatology-Venereology, Aristotle University Medical School, Thessaloniki, Greece.

Abstract

BACKGROUND:

Acquired naevi often present in childhood and increase in number and size during early and middle life. As naevi represent potential mimickers of melanoma, the knowledge of their epidemiologic and morphologic characteristics is essential.

OBJECTIVE:

In this study, we intend to determine the prevalence of dermoscopic patterns of naevi, as well their association with environmental and constitutional factors.

METHODS:

Cross-sectional data derived from a population-based cohort of children and adolescents aged 6-18 years, from 12 different schools in Thessaloniki, Greece. For each participant, a consent form and a questionnaire were completed, which included data on age, sex, phototype, sun sensitivity, sun exposure, sunscreen use and previous sunburn history. All naevi, their body distribution, and their dermoscopic patterns were recorded.

RESULTS:

Two thousand and five hundred and five (2505) subjects were enrolled into the study (47.8% males and 52.2% females). The mean number of MN counted in a single person was 29.11 (SD = ±23.863). TNC increased continuously with higher age. Males were found to have a significantly increased number on the trunk (11.7 ± 11.2 and 10.0 ± 8.7, respectively, P < 0.001) and face and neck (6.2 ± 5.3 and 5.1 ± 4.3, respectively, P < 0.001) while females on the upper (10.3 ± 10.1 and 9.3 ± 9.4, respectively, P = 0.008) and lower extremities (2.8 ± 3.4 and 2.5 ± 3.2, respectively, P = 0.008). Globular pattern was the most frequent dominant pattern in lower age groups, and its percentage fell as age increased. On the contrary, the reticular pattern was more often documented in individuals in adolescence.

CONCLUSION:

This first study of MN in our young population aims to be the basis of further investigation for the MM preventive policy of our state.

PMID:
29633380
DOI:
10.1111/jdv.14996
[Indexed for MEDLINE]

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