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The scientific name for the condition is syndactyly, although this term covers both webbed fingers and webbed toes. Syndactyly occurs when apoptosis or programmed cell death during gestation is absent or incomplete. Webbed toes occur most commonly in the following circumstances: [1] Syndactyly or familial syndactyly; Down syndrome
Absent tibia-polydactyly-arachnoid cyst syndrome, also known as Holmes-Collins syndrome, is a very rare multi-systemic hereditary disorder which is characterized by facial dysmorphisms, [1] pre/post-axial polydactyly, toe syndactyly, missing/underdeveloped tibia bone, and the presence of a retrocerebellar arachnoid cyst.
Webbing between the second and third finger and between the second and third toes [2] Short fingers and toes (brachydactyly) [4] Broad thumb and/or a broad hallux (big toe) with a valgus deformity (outward angulation of the distal segment of a bone/joint) [6] Hands have a single palmar flexion crease [3]
[1] [2] [5] In particular, syndactyly of the third and fourth fingers or the second, third and fourth toes is termed "syndactyly type 1". [1] The degree of syndactyly may differ across affected individuals, with some exhibiting syndactyly of soft tissues and skin only, and more severe cases exhibiting syndactyly of digital bones.
Cenani–Lenz syndactylism is inherited in an autosomal recessive manner. [1] This means the defective gene responsible for the disorder is located on an autosome, and two copies of the defective gene (one inherited from each parent) are required in order to be born with the disorder.
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 ]
Syndactyly is a condition wherein two or more digits are fused together. It occurs normally in some mammals , [ 1 ] but is an unusual condition in humans. The term is from Ancient Greek σύν (syn) 'together' and δάκτυλος (daktulos) 'finger'.
The most striking sign of Timothy syndrome type 1 is the co-occurrence of both syndactyly (about 0.03% of births) and long QT syndrome (1% per year) in a single patient. . Other common symptoms include cardiac arrhythmia (94%), heart malformations (59%), and autism or an autism spectrum disorder (80% who survive long enough for evaluati