Cullen's sign

[kŭlənz]

n.

An indication of intraperitoneal hemorrhage, especially in ruptured ectopic pregnancy, in which blood causes periumbilical darkening of the skin.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.