Dermoscopic patterns of dermatofibroma in 72 Chinese patients

Abstract

To the Editor: Dermatofibroma is a very common benign tumor of the skin composed of fibrohistiocytic cells, which may occur anywhere on the body surface with a predilection for the extremities in adult patients. Most of the lesions (n = 17, 20.7%, Figure 1C) were shown in type three pattern with peripheral delicate pigment network and central white network followed by multiple white scarlike patches pattern (n = 11, 13.4%, Figure 1H), total delicate pigment network pattern (n = 11, 13.4%, Figure 1A), total homogeneous area pattern (n = 9, 11.0%, Figure 1F), peripheral delicate pigment network and central white scarlike patch pattern (n = 7, 8.5%, Figure 1B), peripheral homogeneous area and central white scarlike patch pattern (n = 7, 8.5%, Figure 1I), peripheral delicate pigment network and central homogeneous area pattern (n = 6, 7.3%, Figure 1D), total white network pattern (n = 6, 7.3%, Figure 1E), atypical pattern (n = 4, 4.9%, Figure 1K), total white scarlike patch pattern (n = 2, 2.4%, Figure 1G) and peripheral homogeneous area and central white network pattern (n = 2, 2.4%, Figure 1J). Peripheral delicate pigment network and central white network (8.5%) was the most predominant pattern in the youngest age group (≤40 years), older individuals aged 41 to 60 years (8.5%), and population aged over 60 years (3.7%).