Åkerlund deformity

[ĕkər-lund′, ôkər-]
n.
  1. A deformity of the duodenal cap as seen in a radiograph of a duodenal ulcer, consisting of an indentation of the cap in addition to the ulcerated area.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.