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  

Oleh:

Tuma, Bruna ; Yamada, Sergio ; Atallah, Alvaro Nagib ; Araujo, Fernanda Mendes ; Hirata, Sergio Henrique

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: JAAD: Journal of the American Academy of Dermatology (keterangan: ada di ClinicalKey) vol. 73 no. 01 (Jul. 2015), page 114–119 .
Topik: acquired melanocytic nevi; African descent; black people; dermoscopy; ethnic group; melanoma; skin surface microscopy

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Perpustakaan FK Nomor Panggil: J15.K Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

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 < .001). The acquired melanocytic nevi in the skin type V/VI group were associated with the reticular pattern (P < .0001), with a tendency toward central hyperpigmentation (P = .0025). Limitations The choice of a single representative nevus per patient is a limitation. Conclusions Acquired melanocytic nevi in individuals with skin type V/VI have a distinct dermoscopic pattern from those with skin type I/II.

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