I put together these medical challenges. The cases are hypothetical and do not necessarily represent actual or typical presentations of medical diseases. Disclaimer is at the bottom of this page.
Thursday, October 4, 2012
Egg
Challenge: This is the first structure to appear within the gestational sac and confirms an intrauterine pregnancy. It can be seen at the 5th week of gestation. What is it?
Egg
ReplyDeleteThis is a yolk sac.
Source: UpToDate.