angular pregnancy

MRI can be used particularly when it is important to distinguish between an interstitial and angular pregnancy.

The paucity of myometrium around the gestational sac is diagnostic, while, in contrast, the angular pregnancy has at least 5 mm of myometrium on all of its sides.

Interstitial pregnancies can be confused with angular pregnancies; the latter, however, are located within the endometrial cavity in the corner where the tube connects; typically those pregnancies are viable although a high miscarriage has been reported.