A patient with a positive pregnancy test is referred to the…

A patient with a positive pregnancy test is referred to the ultrasound department with a history of painless vaginal bleeding. Sonographically, you visualize a single live intrauterine gestation. The crown rump length is consistent with an 8 week pregnancy. Within the fetal skull, you visualize a round, anechoic structure. What does this most likely represent?

A sonographic examination is ordered for a postpartum patien…

A sonographic examination is ordered for a postpartum patient suffering from excessive vaginal bleeding and possible retained products of conception. Sonographically, the uterus appears enlarged. Which of the following statements is true concerning the sonographic appearance of the postpartum uterus?