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Postaxial polydactyly. This is the most common situation, in which the extra digit is on the ulnar side of the hand, thus the side of the little finger. This can also be called postaxial polydactyly. It can manifest itself very subtly, for instance only as a nubbin on the ulnar side of the little finger, or very distinctly, as a fully developed ...
Polysyndactyly is a congenital anomaly, combining polydactyly and syndactyly, in which affected individuals have an extra finger or toe that is connected, via fusing or webbing, to an adjacent digit. [ 1 ] [ 2 ]
Scalp defects-postaxial polydactyly syndrome is a very rare genetic disorder which is characterized by congenital defects of the scalp and type A postaxial polydactyly. [1] [2] An additional finding is severe intellectual disability. It is thought to be inherited in an autosomal dominant manner.
Bardet–Biedl syndrome is a pleiotropic disorder with variable expressivity and a wide range of clinical variability observed both within and between families. The most common clinical features are rod–cone dystrophy, with childhood-onset night-blindness followed by increasing visual loss; postaxial polydactyly; truncal obesity that manifests during infancy and remains problematic ...
Polydactyly (from Greek πολυ-poly-'many') is when a limb has more than the usual number of digits. This can be: As a result of congenital abnormality in a normally pentadactyl animal. Polydactyly is very common among domestic cats. For more information, see polydactyly.
McKusick–Kaufman syndrome (associated with postaxial polydactyly) Robinow syndrome (associated with dwarfism) Aarskog–Scott syndrome (associated with facial anomalies) Hand-foot-genital syndrome (associated with limb malformations) Popliteal pterygium syndrome (associated with extensive webbing behind knees)
Megalencephaly-polymicrogyria-polydactyly-hydrocephalus (MPPH) is one of the two major syndromes contributing to megalencephaly. Typically MCAP and MPPH can be distinguished by somatic features. [11] In differentiation to MCAP, MPPH lacks consistent somatic features other than postaxial polydactyly. [12]
Polydactyly-myopia syndrome, also known as Czeizel-Brooser syndrome, is a very rare genetic disorder which is characterized by post-axial polydactyly on all 4 limbs and progressive myopia. [1] Additional symptoms include bilateral congenital inguinal hernia and undescended testes. [ 2 ]