Seven Non-melanoma Features to Rule Out Facial Melanoma.

Abstract:

:Facial melanoma is difficult to diagnose and dermatoscopic features are often subtle. Dermatoscopic non-melanoma patterns may have a comparable diagnostic value. In this pilot study, facial lesions were collected retrospectively, resulting in a case set of 339 melanomas and 308 non-melanomas. Lesions were evaluated for the prevalence (> 50% of lesional surface) of 7 dermatoscopic non-melanoma features: scales, white follicles, erythema/reticular vessels, reticular and/or curved lines/fingerprints, structureless brown colour, sharp demarcation, and classic criteria of seborrhoeic keratosis. Melanomas had a lower number of non-melanoma patterns (p< 0.001). Scoring a lesion suspicious when no prevalent non-melanoma pattern is found resulted in a sensitivity of 88.5% and a specificity of 66.9% for the diagnosis of melanoma. Specificity was higher for solar lentigo (78.8%) and seborrhoeic keratosis (74.3%) and lower for actinic keratosis (61.4%) and lichenoid keratosis (25.6%). Evaluation of prevalent non-melanoma patterns can provide slightly lower sensitivity and higher specificity in detecting facial melanoma compared with already known malignant features.

journal_name

Acta Derm Venereol

authors

Tschandl P,Gambardella A,Boespflug A,Deinlein T,de Giorgi V,Kittler H,Lallas A,Malvehy J,Moscarella E,Puig S,Scalvenzi M,Thomas L,Zalaudek I,Alfano R,Argenziano G

doi

10.2340/00015555-2759

subject

Has Abstract

pub_date

2017-11-15 00:00:00

pages

1219-1224

issue

10

eissn

0001-5555

issn

1651-2057

journal_volume

97

pub_type

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