title: Similarities between a conjoined nail and the palmar nail syndrome.
abstract: The congenital palmar nail syndrome consists of a triad of palmar nail, absent finger flexion and abnormalities of the distal phalanx. There are two main theories about the pathogenesis of this syndrome: the ancestral reversion theory and the duplication theory. In this paper, similarities between a conjoined nail in conjoined twins and the palmar nail syndrome are described to support the duplication theory.
authors.affiliation: King Fahad National Guard Hospital and King Saud University, Riyadh, Saudi Arabia.
authors.forename: M M
authors.initials: MM
authors.lastname: Al-Qattan
authors.forename: A
authors.initials: A
authors.lastname: Al-Rabeeah
mesh_terms: D005532:Foot Deformities, Congenital / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D009264:Nails, Malformed; D011859:Radiography; D013577:Syndrome; D014428:Twins, Conjoined