Could a Dermoid Cyst Be a Twin?

Except teratomas and dermoids are usually not twins, and they're not even humans. They're just sacks filled with freaky real human parts — like Chucky, but in your ovary.

Is a dermoid ovarian cyst a baby?

Dermoid cysts are a congenital condition. This means they're present at birth.

Is a teratoma a twin?

It's made up of living tissue. But without the support of a placenta and an amniotic sac, the undeveloped fetus has no chance of development. One theory explains the fetus in fetu teratoma as the remains of a twin that was unable to develop in the womb, and was encompassed by the body of the surviving child.