Kocsard E, Kossard S
St. Vincent Hospital Sydney.
Hautarzt. 1988 Jul;39(7):452-3.
Symmetric lividity of the soles of the feet was first reported in two children in 1925 by Pernet. The characteristic manifestation of this dermatosis consisted in hyperkeratosis and hyperhidrosis with livid discoloration of the pressure areas of the soles. Later the same name was applied to a similar dermatosis in which the hyperkeratotic and hyperhidrotic patches of skin on the soles had a whitish grey discoloration and the livid color, if present at all, was seen only over the marginal areas not affected by the keratosis. Similar livid keratoses affecting the palmar sides of the fingers have been seen only occasionally. The 17-year-old girl presented in this paper had a 11-year history of emotional hyperhidrosis and is a rare illustration of symmetrical lividity in its original form, localized to the fingers only.
1925年，佩尔内首次报道了两名儿童脚底出现对称性青紫。这种皮肤病的特征性表现为角化过度、多汗，脚底受压部位出现青紫变色。后来，同样的名称被用于一种类似的皮肤病，其中脚底皮肤的角化过度和多汗斑块呈灰白色变色，而青紫颜色（如果有的话）仅出现在未受角化病影响的边缘区域。仅偶尔可见影响手指掌侧的类似青紫角化病。本文报道的这名17岁女孩有11年的情绪性多汗病史，是仅局限于手指的原始形式对称性青紫的罕见病例。
