incontinentia pigmenti achromiens

[ə-krōmē-əns]
n.
  1. An inherited skin disorder characterized by the appearance of macules with less than normal pigmentation in a swirling or marble pattern, and associated with other abnormalities of the nerves, eyes, muscles, and bones.hypomelanosis of Ito
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.