This study estimates the association of a first trimester finding of subchorionic hematoma (sch) with third trimester adverse pregnancy outcomes in women with twin. Subchorionic bleeding dissecting around the endometrial cavity ( fig. Weba marginal subchorionic hematoma can mimic a twin gestational sac.

Webin this case, an iup and a subchorionic hemorrhage were both seen on a sonogram performed by the radiology department and initially interpreted as a possible twin.