Abstract

The term "conjoined twins" is usually applied to twins who have some variety of anatomical union. We have the opportunity to study two cases of conjoined twine at the Department of Pathology, College of Medicine, Seoul National University. The first case is cephalothoracopagus syncephalus, which was one of live-born binovular triplets delivered from a 33-years-old multiparous Korean woman at 32 weeks of gestation period. The second case is dicephalus dipus tribrachius, which was still-born uniovular twin delivered from a 31-years-old multiparous Korean woman at 36 weeks of gestation period. Review of the literature conscerning the classification, etiology and prognosis of the conjoined twins was attempted.