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A bifid nose (also known as cleft nose) is an uncommon congenital malformation which is characterized by the presence of a cleft between the two nostrils of the nose. [1] It is the result of a disturbance during embryological nose development. [2] It is part of the Tessier classification for craniofacial clefts. [3]
A cleft lip is an opening of the upper lip, mainly due to the failure of fusion of the medial nasal processes with the palatal processes; a cleft palate is the opening of the soft and hard palate in the mouth, which is due to the failure of the palatal shelves to fuse together. [10]
If the cleft does not affect the palate structure of the mouth, it is referred to as cleft lip. Cleft lip is formed in the top of the lip as either a small gap or an indentation in the lip (partial or incomplete cleft), or it continues into the nose (complete cleft). Lip cleft can occur as a one-sided (unilateral) or two-sided (bilateral ...
Nasomaxillary dysplasia is caused by a development arrest at the junction of the lateral side of the nose and the maxilla, which results in a complete or non-complete cleft between the nose and the orbital floor (nasoocular cleft) or between the mouth, nose and the orbital floor (oronasal-ocular cleft). The development of the lip is normal.
In some cases of autosomal dominant Opitz G/BBB syndrome, the disease is caused by a mutation in the SPECC1L gene (near the 22q11.2 gene), which helps make cytospin-A. Cytospin-A is a protein imperative to the formation of facial features and is often considered responsible for the cleft lip or palate that Opitz G/BBB syndrome patients will ...
Frontonasal dysplasia (FND) is a congenital malformation of the midface. [1] For the diagnosis of FND, a patient should present at least two of the following characteristics: hypertelorism (an increased distance between the eyes), a wide nasal root, vertical midline cleft of the nose and/or upper lip, cleft of the wings of the nose, malformed nasal tip, encephalocele (an opening of the skull ...
The current research indicates fibroblast growth factor receptors (FGFR) FGFR2 and FGFR3 as the leading factors in causing the autosomal dominant Crouzon syndrome. [7] [8] These two transmembrane proteins are two of four fibroblast growth factor receptors involved in osteoblast differentiation during embryonic development; mutations amongst these receptors are involved in several genetic ...
Holoprosencephaly-ectrodactyly-cleft lip/palate syndrome; Other names: Hartsfield syndrome [1] Specialty: Medical genetics: Diagnostic method: genetic testing, physical examination: Prevention: None: Prognosis: poor: Frequency: rare, about 35 cases have been described in the medical literature: Deaths: most patients are either stillborn or die ...