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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 ...
The main characteristics of the syndrome are extra fingers and/or toes (polydactyly), with the skin between some fingers or toes potentially fused or "webbed" (cutaneous syndactyly), and a benign mass or lesion in the brain called a hypothalamic hamartoma. [5]
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 ]
Ostravik-Lindemann-Solberg syndrome, also known as heart defect-tongue hamartoma-polysyndactyly syndrome is a rare, multi-systemic genetic disorder which is characterized by congenital heart defects, tongue hamartomas, postaxial polydactyly of the hand, and syndactylism of the foot.
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 ...
Mutations in this gene have been associated with several diseases, including Greig cephalopolysyndactyly syndrome, Pallister–Hall syndrome, preaxial polydactyly type IV, and postaxial polydactyly types A1 and B. [6] DNA copy-number alterations that contribute to increased conversion of the oncogenes Gli1–3 into transcriptional activators by the Hedgehog signaling pathway are included in a ...
Although all metacarpals (bones of the hand) are present, they are relatively short. [9] Some individuals may have an extra finger on both hands, a condition called bilateral postaxial polydactyly. [10] In the lower limb, the middle segments (tibia and fibula) and the feet are significantly affected. [9]
Polydactyly alopecia seborrheic dermatitis; Polydactyly cleft lip palate psychomotor retardation; Polydactyly myopia syndrome; Polydactyly postaxial dental and vertebral; Polydactyly postaxial with median cleft of upper lip; Polydactyly postaxial; Polydactyly preaxial type 1; Polydactyly syndrome middle ray duplication