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Radiology.Academy.Sk

Ectopic Pregnancy

1st trimester pregnancy with irregular bleeding, abdominal or pelvic pain, tender adnexal mass; hCG doubles every 2 days in normal pregnancy





DDx of positive pregnancy test






When pregnancy test is positive, the ONLY finding that rules out ectopic pregnancy is the detection of an IUP.




When pregnancy test is positive and there is no evidence of an IUP, ANY adnexal finding other than intra-ovarian cyst should be considered an ectopic pregnancy until proven otherwise.




Location of Ectopic pregnancy






Pseudogestational sac

Collection of fluid or echogenic material (decidual cast) within the endometrium (IUP fake out), 5% of ectopics


Decidual cysts

In the periphery of hyperechoic endometrium; associated with ectopic pregnancy


Interstitial (cornual) pregnancy

Eccentrically positioned within the most lateral portion of the uterine fundus; Interstitial line sign: Hyperechoic endometrial line abuts on the midportion of the sac rather than going around it



Adnexal Ectopic Pregnancy