NCIt definition : Ectopic pregnancy characterized by the implantation of the embryo in the peritoneal
cavity or abdominal organs.;
Alternative definition : GAIA: A rare form of an ectopic pregnancy, in which a pregnancy implants into the
peritoneal cavity or into the abdominal organs.; NICHD: An abnormal pregnancy in which the conception is implanted in the peritoneal
cavity or on the abdominal organs.;