Renbök phenomenon in alopecia areata.

  title={Renb{\"o}k phenomenon in alopecia areata.},
  author={A M Bon and Rudolf Happle and Peter H. Itin},
  volume={201 1},
We present a second case of alopecia areata sparing a congenital nevus of the eyebrow. This inverse counterpart of perinevoid alopecia is discussed and placed in context to the recently described Renbök phenomenon. According to the present definition of a nevus as a genetic mosaic, a genetically determined resistance to alopecia areata is suggested in our… CONTINUE READING