1 Jacek Czopek, Department of Pathomorphology, Jagiellonian University Medical College, Grzegorzecka 16, 31-531 Krakow, Poland, e-mail: jacek.czopek@uj.edu.pl.
A case of pregnancy associated extrauterine decidual reaction of great omentum in a 25 year old woman, incidentally discovered during microscopic examination is described with a short review of literature.