Source:http://linkedlifedata.com/resource/umls/id/C0032984
MSH: A type of ectopic pregnancy in which the EMBRYO, MAMMALIAN implants in the ABDOMINAL CAVITY instead of in the ENDOMETRIUM of the UTERUS.,NCI: Ectopic pregnancy characterized by the implantation of the embryo in the peritoneal cavity or abdominal organs.