Three years dermoscopic follow-up of atypical nevi.
Clark
atypical nevus
dermoscopy
follow-up
Journal
Dermatologic therapy
ISSN: 1529-8019
Titre abrégé: Dermatol Ther
Pays: United States
ID NLM: 9700070
Informations de publication
Date de publication:
01 2020
01 2020
Historique:
received:
03
10
2019
revised:
09
12
2019
accepted:
09
12
2019
pubmed:
25
12
2019
medline:
25
11
2020
entrez:
25
12
2019
Statut:
ppublish
Résumé
Atypical nevi are dynamic lesions and may progressively transform into more or less atypical lesions. We aimed to investigate the dermoscopic features of atypical nevi and dynamic changes in these lesions over a period of 3-years. Patients with 3-year dermoscopic follow-up records were enrolled in the study. We compared the dermatoscopic features of the nevus recorded in the first dermoscopic examination and at the end of the third year. Changes in size (mm), pattern, and color were investigated. The most common dermoscopic patterns were reticular (18 patients; 34%), reticular-homogeneous (17 patients; 32.1%), and reticular-globular (7 patients; 13.2%). The most common pigmentation patterns were central hyperpigmentation (28 patients; 52.8%), regular pigmentation (nine patients; 17.0%), and multifocal hypo/hyperpigmentation (eight patients; 15.1%). Twenty-one (39.6%) patients showed changes in pattern. The transformation from reticular-homogeneous pattern to the homogeneous pattern was the most frequent change in pattern (7 of 21 patients; 33.3%). The transformation from reticular pattern to reticular-homogeneous pattern was the second most common change in pattern (5 of 21 patients; 23.8%). Fourteen (26.4%) patients experienced symmetrical enlargement. Symmetrical enlargement was statistically more frequent in patients who showed dermoscopic changes in pattern than in those who did not show any changes in the pattern (p: .038). In this study, we did not observe any new dermoscopic clues for the diagnosis of melanoma during the follow-up. The nevi tended to turn into a homogeneous (structureless) pattern. We observed that the most common dermoscopic change in pattern was the transformation from reticular-homogeneous pattern to homogeneous pattern, and the lesions had symmetrical enlargement during this transformation. In conclusion, despite the known association between atypical nevi and the risk of developing melanoma, most atypical nevi do not transform into melanoma. Therefore, our study suggests that the excision of atypical nevi is not necessary and dermatoscopic follow-up can reduce the number of unnecessary excisions.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e13205Informations de copyright
© 2019 Wiley Periodicals, Inc.
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