title: Monocephalus diprosopus, a rare form of conjoined twins, and associated congenital anomalies.
abstract: Craniofacial duplication (diprosopus) is a rare form of conjoined twins. A case of monocephalus diprosopus with anencephaly, cervicothoracolumbar rachischisis, and duplication of the respiratory tract and upper gastrointestinal tract is reported. The cardiovascular system remained single but the heart showed transposition of the great vessels. We present this case due to its rarity, and compare our pathologic findings with those already reported.
authors.affiliation: Department of Pathology and Laboratory Medicine, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico.
authors.forename: Edda L
authors.initials: EL
authors.lastname: Rodríguez-Morales
authors.forename: María S
authors.initials: MS
authors.lastname: Correa-Rivas
authors.forename: Lillian E
authors.initials: LE
authors.lastname: Colón-Castillo
mesh_terms: D000015:Abnormalities, Multiple / Q000473:pathology*; D000328:Adult; D000757:Anencephaly / Q000473:pathology; D019465:Craniofacial Abnormalities; D004065:Digestive System Abnormalities; D005145:Face / Q000002:abnormalities; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009436:Neural Tube Defects / Q000473:pathology; D006831:Polyhydramnios / Q000473:pathology; D011247:Pregnancy; D015619:Respiratory System Abnormalities; D016135:Spinal Dysraphism / Q000473:pathology; D014428:Twins, Conjoined / Q000473:pathology*