Noonan syndrome, a multifaceted condition characterized by a series of birth defects (congenital malformations) including short stature after birth (postnatal growth retardation), webbing of the neck (pterygium colli), caved-in chestbone (pectus excavatum), narrowing of the artery from the heart to the lungs (pulmonic stenosis) and, in boys, testes that do not descend normally into the scrotum (cryptorchidism). Although NS was called Turner-like syndrome, it is a distinctive entity that affects both sexes and carries an elevated risk of developmental and language delay, learning disability, hearing loss, and mild mental retardation. NS is inherited as a dominant condition and an NS gene has been mapped to chromosome12.
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natural science; Neosporin; nephrosclerosis; nephrotic syndrome; nervous system; Netherton syndrome; neurological surgery, neurosurgery; neurosecretion, neurosecretory; neurosyphilis; neurotic score; nodular sclerosis; noise to signal [ratio]; nonsmoker; nonspecific; nonstimulation; nonstructural; nonsymptomatic; Noonan syndrome; normal saline [solution]; normal serum; normal sodium [diet]; Norwegian scabies; no sample; no sequelae; no shear; nosocomial sinusitis; no specimen; not seen; not significant; not specified; not sufficient; not symptomatic; nuclear sclerosis; nursing services; Nursing Sister

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ns abbr nanosecond

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normal saline.

Medical dictionary. 2011.

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