My daughter's first scan at 9 wks showed twins, one fine, one without a heartbeat. They gave her all the common options regarding the non-viable twin. Today, however, she had her 19 week scan and the one baby was PERFECT but the other baby hadn't absorbed or vanished! It had continued to grow and measured at 17 weeks with arms, legs and a backbone. They didn't show us that baby in depth but she has an appt. with the specialist on Monday. No one had ever seen this happen before so they didn't have any answers. We'll wait and see. She is choosing to be excited that her other baby is just fine! Does anyone have any answers as to the dangers the non-viable baby poses on the healthy one?