Barquet V, Dufrechou L, Nicoletti S, Acosta M A, Magliano J, Martínez M, Larre Borges A
Unidad de Lesiones Pigmentadas, Cátedra de Dermatología del Hospital de Clínicas Dr. Manuel Quintela, Montevideo, Uruguay.
Actas Dermosifiliogr. 2013 Sep;104(7):586-92. doi: 10.1016/j.adengl.2013.01.002.
Melanocytic nevi are frequently found on acral volar skin. Differentiation between nevi and melanoma is essential and sometimes difficult, although dermoscopy has enabled a more specific diagnosis of pigmented lesions. Dermoscopic patterns of lesions on acral volar skin have mostly been described in European and Asian populations. The Latin American population is heterogeneous, and particularly so in the case of Uruguayans, who largely descend from 3 distinct populations.
To describe dermoscopic patterns of acral melanocytic nevi and evaluate their applicability in a Latin American population in Uruguay.
This was an observational, descriptive, cross-sectional study conducted by 2 dermatologists from 4 dermatology clinics in Uruguay. Uruguayan patients older than 18 years with acral melanocytic nevi were included. Digital dermoscopic images were captured and jointly analyzed by 2 investigators.
A total of 158 acral volar nevi in 80 patients were analyzed. The most-prevalent pattern was the parallel furrow pattern (51.3% of nevi), followed by the latticelike pattern (13.3%), the homogeneous pattern (12.7%), the globular pattern (9.5%), the fibrillar pattern (7%), the globulostreaklike pattern (3.8%), and the nontypical pattern (2.5%). The reticular and transition patterns were not observed in our population.
The parallel furrow pattern, followed by the latticelike and homogeneous patterns, was the most-prevalent pattern in acral melanocytic nevi in the Uruguayan population. The fibrillar pattern was found exclusively on the soles. No new dermoscopic patterns were observed. The patterns described in Asian and European literature apply to our population.
黑素细胞痣常见于手掌足底皮肤。痣与黑色素瘤的鉴别至关重要，有时也颇具难度，尽管皮肤镜检查有助于更准确地诊断色素性皮损。手掌足底皮肤皮损的皮肤镜表现大多是在欧洲和亚洲人群中描述的。拉丁美洲人群具有多样性，乌拉圭人尤为如此，他们主要源自3个不同的群体。
描述手掌足底黑素细胞痣的皮肤镜表现，并评估其在乌拉圭拉丁美洲人群中的适用性。
这是一项观察性、描述性横断面研究，由乌拉圭4家皮肤科诊所的2名皮肤科医生开展。纳入年龄超过18岁的患有手掌足底黑素细胞痣的乌拉圭患者。由2名研究人员采集数字皮肤镜图像并进行联合分析。
共分析了80例患者的158个手掌足底痣。最常见的表现是平行沟纹型（占痣的51.3%），其次是网格状型（13.3%）、均匀型（12.7%）、球状型（9.5%）、纤维状型（7%）、球纹状型（3.8%）和非典型型（2.5%）。在我们的研究人群中未观察到网状型和移行型。
平行沟纹型，其次是网格状型和均匀型，是乌拉圭人群手掌足底黑素细胞痣中最常见的表现。纤维状型仅见于足底。未观察到新的皮肤镜表现。亚洲和欧洲文献中描述的表现适用于我们的人群。
