No congenital malformation in infants is more profound than anterior craniofacial duplication. The precise term for this rare anomaly is diprosopus, referring to a fetus with a single trunk, normal limbs, and varying degrees of facial duplication. A search of the world literature produced only 16 cases of diprosopus since
Although classically considered conjoined twinning which it resemblesthis anomaly is not normally due to the fusion or incomplete separation of two embryos. It is the result of abnormal activity by the protein SHH sonic hedgehog. SHH and its corresponding gene have been found to play an important role in signaling craniofacial patterning during embryonic development.
Skip navigation. Diprosopus is a congenital defect also known as craniofacial duplication. The exact description of diprosopus refers to a fetus with a single trunk, normal limbs, and facial features that are duplicated to a certain degree.
Correspondence Address : Dr. Craniofacial duplication known as diprosopus is a rare congenital disorder whereby parts or all of the face are duplicated on the head. This is a case of a 1-year-old boy referred to our hospital with an extra eye third eye on the left side of the head and an abnormally shaped head, which were noticed since birth.
Tres Johnson has craniofacial duplication and doctors told his parents Brandy and Joshua that their son was unlikely to survive at almost every stage of his life. The youngster, from Missouri, USA, was born with a large cleft, two separate nostrils, an abnormally shaped head, cognitive delays and suffers seizures. Brandy, 35, his full-time carer, said: "He was adorable and shocking at the same time, one side of his face looked like our older son, the other resembled our middle son.
Skip to search form Skip to main content. Of all twin pregnancy complications, the least frequent is a fetus with craniofacial duplication dipro- sopus. In this article we report a case with this condition, and we review the literature on this rarest of human malformations.
Linda Crampton is a writer and teacher with an honors degree in biology. She loves to study nature and write about living things. Janus cats have a face that is completely or partially duplicated. They are named after Janus, the Ancient Roman god who gave his name to the month of January.
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