Duplicata incompleta Elena Andreeva, MD Article Published: Aug 10, 2007 Medical Genetic Center, Gomel, Belarus. Â Case report Here are some examples of duplicata incompleta from our pactice. Images 1, 2: Images show the parapagus diprosopus (also called monocephalic diprosopos). Image 3: Ectoparasitic twin. Â Discussion Board Start a discussion about this article Add bookmark Bookmarked