PDF(Pubmed)
Abstract：
Becker\'s nevus, also known as Becker\'s melanosis or Becker\'s pigmentary hamartoma, is a concurrent melanosis first described by S. William Becker. It is a type of acquired hyperpigmentation characterized by well-defined, unilateral lesions with regular borders. It is associated with hypertrichosis and hyperpigmented brownish patches with a mean diameter of 15 cm. The shoulder, scapular area, and upper arms are the most commonly affected areas, but it can occur on any area of the body, including the forehead, face, neck, lower trunk, extremities, and buttocks. The lesion usually appears around puberty, and males are more likely to be affected than females. A 27-year-old male of Arabic descent who was medically free presented to the dermatology clinic complaining of bilateral, symmetrical, hyperpigmented patches on the upper back. The lesions started almost at birth, gradually growing in size and darkening in color over time. On local skin examination, the lesions were bilateral, symmetrical, hyperpigmented patches on the upper back. They were both homogeneous and brown in color with irregular borders and blotchy hyperpigmented macules on both sides of the upper back associated with sparse hair development. Histopathological examination revealed epidermal hyperkeratosis, acanthosis, and focal regular elongation of rete ridges with clubbing. Increased basal layer pigmentation was noticed. The dermis showed focal areas with pigment incontinence. Based on the above clinicopathological findings, the patient was diagnosed with Becker\'s melanosis. He was referred to the laser clinic for further treatment.
摘要：
贝克尔的痣,也被称为贝克尔黑变病或贝克尔的色素错构瘤，是S.WilliamBecker首次描述的并发黑变病。它是一种获得性色素沉着过度，有规则边界的单侧病变。它与多毛症和色素沉着的褐色斑块有关，平均直径为15厘米。肩膀,肩胛骨区域,上臂是最常见的区域，但它可以发生在身体的任何部位，包括额头,脸,脖子,下树干,四肢,还有臀部.病变通常出现在青春期前后，男性比女性更容易受到影响。一名27岁的阿拉伯血统男性，在医疗上免费，被带到皮肤科诊所，抱怨双侧，对称,上背部的色素沉着斑块。病变几乎在出生时就开始了，随着时间的推移，尺寸逐渐增大，颜色逐渐变暗。局部皮肤检查,病变是双侧的，对称,上背部的色素沉着斑块。它们都是均匀的和棕色的，边缘不规则，上背部两侧有斑点的色素沉着斑，与稀疏的头发发育有关。组织病理学检查显示表皮角化过度，棘皮病,和网状脊的局部规则伸长。注意到基底层色素沉着增加。真皮显示有色素失禁的局灶性区域。根据上述临床病理发现，患者被诊断为Becker黑变病。他被转诊到激光诊所接受进一步治疗。
