2 years ago i lost pregnancy at 8 weeks. I passed empty sack and placenta but no baby. had two scans but no baby anywhere and the cells of my placenta indicated ectopic. 17 months on (and after one healthy full term pregnancy) they found a dermoid cyct with a very strange shape growing hair glands and teeth!! what the chances that is was the mass is what was initially meant to turn into that baby? Dr nurse said this dermoid was rare and can give false positive pregnancy. Im seing OBGYN next week to discuss the recent surgery. I kind of hope this is the explination he givesnme so that I can put things to rest.