Tymen R, Forestier J F, Boutet B, Colomb D
Ann Dermatol Venereol. 1981;108(1):41-6.
The authors make a survey of a series of a hundred Becker's nevi diagnosed in a recruiting center of the French National Service. It is a statistic study bearing on the male population, aged 17 to 26, in a French region which is supposed to be representative of the French male population of the same age. First of all the authors focus on the various clinical descriptions since this nevus was first described by Becker in 1949, then discuss the problems raised by pathogenic interpretation and the results of microscopic studies. About this lesion, usually said to be pigmentary and hairy, and generally appearing before 20 years of age, is still very little known. Then after a short explanation of their method of study the authors give original results. A hundred Becker's nevi were diagnosed among 19,302 young men, that is to say in a proportion of 0.52 p. 100. A study of the racial, genetic and pigmentary background doesn't enable to retain general causes but rather leads to think of local causes. Half of these Becker's nevi appeared before ten years of age, the other half appearing between 10 and 20. In only one quarter of the cases can the role of the sun be pointed out. The location of the nevi is variable; they are mainly situated on the trunk and only 32 p. 100 of them are located above nipples, which was believed to be the usual place of the lesion. Pigmentation in three quarter of the cases is light brown. The average surface is 125 cm2. Hairs can be seen in only a little more than half of the cases of no lesion associated to the nevus could be found. The study points out that Becker's nevi seem to be more various in their clinical expression and more pigment than could be thought through more classical description.
作者对法国国民服役招募中心诊断出的一系列100例贝克尔痣进行了调查。这是一项针对17至26岁男性人群的统计研究，该法国地区被认为可代表同年龄段的法国男性人口。首先，作者关注自1949年贝克尔首次描述这种痣以来的各种临床描述，然后讨论了病因解释所引发的问题以及显微镜研究的结果。关于这种通常被称为色素性和多毛的病变，一般在20岁前出现，但人们对其仍知之甚少。在简要解释了他们的研究方法后，作者给出了初步结果。在19302名年轻男性中诊断出100例贝克尔痣，也就是说比例为0.52‰。对种族、遗传和色素背景的研究无法确定其普遍病因，反而让人想到局部病因。这些贝克尔痣中有一半在10岁前出现，另一半在10至20岁之间出现。只有四分之一的病例可指出阳光的作用。痣的位置各不相同；它们主要位于躯干，只有32‰位于乳头上方，而此前认为这是该病变的常见部位。四分之三的病例色素沉着为浅褐色。平均面积为125平方厘米。只有略多于一半的病例可见毛发，且未发现与痣相关的其他病变。该研究指出，贝克尔痣在临床表现上似乎比通过更经典描述所认为的更加多样且色素沉着更明显。
