piezogenic pedal papule

[pī-ē′zō-jĕnĭk]
n.
  1. Pressure-induced papules of the heel, occurring probably as a result of the herniation of fat tissue due to degeneration of dermal collagen.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.