Dermoscopy of black skin: A cross-sectional study of clinical and dermoscopic features of melanocytic lesions in individuals with type V/VI skin compared to those with type I/II skin

Background The identification of “normal” dermoscopic patterns of acquired melanocytic nevi provides better diagnostic accuracy for melanoma in people with black skin. Objective We sought to describe melanocytic lesions (numbers and anatomic distributions) in skin types V and VI compared with skin t...

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Bibliographic Details
Published in:Journal of the American Academy of Dermatology 2015-07, Vol.73 (1), p.114-119
Main Authors: Tuma, Bruna, MD, Yamada, Sergio, MD, Atallah, Álvaro Nagib, PhD, Araujo, Fernanda Mendes, EDS, Hirata, Sergio Henrique, PhD
Format: Article
Language:English
Subjects:
acquired melanocytic nevi
Adult
African Americans
African descent
black people
Cross-Sectional Studies
Dermatology
Dermoscopy
ethnic group
Female
Humans
Male
melanoma
Melanoma - classification
Melanoma - pathology
Middle Aged
Prospective Studies
Skin
Skin Neoplasms - classification
Skin Neoplasms - pathology
skin surface microscopy
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Summary:Background The identification of “normal” dermoscopic patterns of acquired melanocytic nevi provides better diagnostic accuracy for melanoma in people with black skin. Objective We sought to describe melanocytic lesions (numbers and anatomic distributions) in skin types V and VI compared with skin types I and II, according to the Fitzpatrick classification. We sought to identify differences in dermoscopic findings in acquired melanocytic nevi (global pattern, pigment and color distribution) between the groups. Methods We conducted cross-sectional, prospective, and consecutive data collection in 2 dermatologic outpatient clinics, between October 8, 2010, and March 20, 2013. From the 501 volunteers, 480 participants fulfilled the eligibility criteria. A total of 460 acquired melanocytic nevi were selected for dermoscopic analysis. Results Individuals with skin type V/VI had fewer melanocytic lesions than those with skin type I/II (15.08 vs 7.90; P  = .032), and the anatomic distribution in the first group was predominantly on the face and acral sites ( P  
ISSN:0190-9622
1097-6787
DOI:10.1016/j.jaad.2015.03.043