The<unk><unk>  is the bone and cartilage in the nose that separates the<unk>  cavity into the two nostrils. The cartilage is called the quadrangular cartilage and the bones comprising the<unk>  include the maxillary crest, vomer and the perpendicular plate of the ethmoid. Normally, the<unk>  lies centrally, and thus the<unk>  passages are symmetrical. A deviated<unk>  is an abnormal condition in which the top of the cartilaginous ridge leans to the left or the right, causing obstruction of the affected<unk>  passage. It is common for<unk>  septa to depart from the exact centerline; the<unk>  is only considered deviated if the shift is substantial or causes problems. By itself, a deviated<unk>  can go undetected for years and thus be without any need for correction. Symptoms of a deviated<unk>  include infections of the sinus and sleep apnea, snoring, repetitive sneezing, facial pain, nosebleeds, mouth breathing, difficulty with breathing and mild to severe loss of the ability to smell. Only more severe cases of a deviated<unk>  will cause symptoms of difficulty breathing and require treatment.
Nasal septum deviation
Protruding ear
Meatal stenosis
Laryngomalacia
Velopharyngeal insufficiency
Nasal septum perforation
Laryngotracheal stenosis
Midline cervical cleft