erythema marginatum

[mär′jə-nātəm]
n.
  1. A form of erythema multiforme in which elevated defined bands remain after erythematous patches have cleared; it occurs in rheumatic fever.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.