نتایج جستجو برای: thumb polydactyly
تعداد نتایج: 7913 فیلتر نتایج به سال:
Preaxial polydactyly (PPD) is inherited in an autosomal dominant fashion and characterized by the presence of one or more supernumerary digits on the thumb side. It had been identified that point mutation or genomic duplications of the long-range limb-specific cis-regulator - zone of polarizing activity regulatory sequence (ZRS) cause PPD or other limb deformities such as syndactyly type IV (SD...
Hand plates with preaxial polydactyly from 13 human embryos of the Carnegie stages 17-23 were examined macro- and microscopically. Morphological features in early pathogenesis of preaxial polydactyly are (1) an abnormal extension and a delayed involution of the apical ectodermal ridge on the preaxial border of the hand plate in stages 17 and 18, (2) a precocious development of an interdigital n...
A healthy, non-consanguineous couple had a son with complete situs inversus viscerum (including dextrocardia but without other cardiac defects), broad thumbs and big toes, postaxial polydactyly, average intelligence and length proportion of the extremities, and a normal face. The common cause of these defects may have a role in the origin of sidedness and symmetry in morphogenesis.
First web space contracture causes significant morbidity and hence their release is important to make use of normal hand functions. helps in improving the grasp. There are several methods normalizing 1st webspace. In this article we describing a local flap that uses spare tissue thumb polydactyly for recovering defect created from first contracture, thereby providing coverage with has good vasc...
Commonly affected anomalies are anorectal malformations (imperforate anus, anteriorly placed anus, anal stenosis), hand malformations (preaxial polydactyly, triphalangeal thumb, bifid thumb), external ear malformations (microtia, “satyr” or “lop” ear, preauricular tag or pits) with sensorineural hearing loss, and renal malformations. In addition, intellectual disability, learning problems, and ...
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