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A high-arched palate (also termed high-vaulted palate) is where the palate is unusually high and narrow. It is usually a congenital developmental feature that results from the failure of the palatal shelves to fuse correctly in development, the same phenomenon that leads to cleft palate . [ 1 ]
Arachnodactyly (long fingers), long limbs, scoliosis (curved spine), a hidden feature of bony lip growth towards vestibular aqueduct (which can be seen in CT scan reports), and imprecise articulation of speech due to high-arched palate are all considered Marfanoid symptoms. Language and cognition can be affected in neonatal Marfan syndrome ...
Besides affecting height and limb proportions, people with Marfan syndrome may have abnormal lateral curvature of the spine scoliosis, thoracic lordosis, abnormal indentation (pectus excavatum) or protrusion (pectus carinatum) of the sternum, abnormal joint flexibility, a high-arched palate with crowded teeth and an overbite, flat feet, hammer ...
Craniofacial and other features of LFS include: maxillary hypoplasia (underdevelopment of the upper jaw bone), [9] a small mandible (lower jaw bone) and receding chin, [3] [17] a high-arched palate (the roof of the mouth), with crowding and misalignment of the upper teeth; [5] [7] macrocephaly (enlarged skull) with a prominent forehead, [3] [9 ...
High-arched palate (related to the above) Hyperextensible finger joints; Hyperextensible thumbs ('double-jointed') Flat feet; Soft skin [vague] Postpubescent macroorchidism (large testicles in males after puberty) [18] Hypotonia (low muscle tone) [19] [20]
Signs and symptoms [ edit ] Some characteristic features of Acrorenal mandibular syndrome include a high-arched palate , split foot , split hand , absent or malformed kidneys , absent tibiae , absent fibula , underdevelopment of the radius , and underdevelopment of the ulna .
Symptoms: Underdevelopment or absences of the bones in the forearms, thumbs, and kneecaps, cleft pallet or high-arched, palate, diarrhea, and short stature. Usual onset: Infancy [1] Duration: Lifelong: Causes: Mutations in the RECQL4 gene [2] Frequency: Less than 1,000 known cases in the United States [1]
Other common symptoms include lack of an eyelid fold, an appearance of widely spaced eyes (telecanthus), low nose bridge and ear malformations (including cupping and incomplete development). Rare symptoms include microphthalmos (abnormally small eyes), tear ducts in the wrong location and a high-arched palate . [ 1 ]