Vázquez M, Ibañez M I, Sánchez J L
Cutis. 1986 Oct;38(4):263-6.
Five patterns of natural pigmentary demarcation lines have been described, occurring most frequently in dark-skinned persons. We report the appearance of these lines on the lower limbs of four Puerto Rican women during pregnancy; the lines faded postpartum. Our findings document group B pigmentary demarcation lines that can completely regress postpartum as another less frequently recognized physiologic change of pregnancy.
已经描述了五种自然色素沉着分界线模式，最常出现在肤色较深的人群中。我们报告了四名波多黎各妇女在怀孕期间下肢出现这些线条；产后这些线条消退。我们的研究结果记录了B组色素沉着分界线，其可在产后完全消退，这是另一种较少被认识到的妊娠生理变化。
