The normal site of implatation for a pregnancy is always the uterus, most of them occuring the upper third and posterior walls of the uterine body (corpus uteri). hCH levels in an ectopic pregnancy are usually lower than in uterine pregnancies. No visible intruterine transvaginal utrasonography with a serum hCG higher than 2000 mIU/ml is indicateive of an ectopic pregnancy. The most common site of ectopic pregnancies is in the Fallopian tubes (80% ampullar). An ectopic pregnancy may be seen in gross pathology as a distension of the Fallopian tube. Histopathological findings of ectopic pregnancies are intraluminal chorionic villi and extravillous trophoblast (may be degenerated) with variable fetal parts.
Ectopic pregnancy pathophysiology
Ectopic pregnancy risk factors
Endometriosis causes
Endometrial hyperplasia pathophysiology
Endometriosis pathophysiology
Endometrial hyperplasia causes
Endometriosis risk factors
Ectopic pregnancy causes