<unk>  can be unilateral or bilateral. * A unilateral<unk>  may not be detected until much later in life because the baby manages to get along with only one nostril available for breathing. Symptoms are minor, including persistent rhinorrhea (mainly normal mucus) and chronic sinusitis. * Bilateral<unk>  is a life-threatening condition because the baby will be unable to breathe directly after birth as babies are obligate nasal breathers (they mainly use their noses to breathe). In some cases, this may present as cyanosis while the baby is feeding, because the oral air passages are blocked by the tongue, further restricting the airway. Cyanosis may improve when the baby cries, as the oral airway is used. These babies may require airway resuscitation soon after birth. Associated conditions<unk>  is associated with a higher risk of other airway problems, including: * tracheomalacia. * laryngomalacia. * subglottic stenosis. Sometimes, babies born with<unk>  also have other abnormalities: *coloboma. *heart defects and cardiovascular disease. *intellectual disability. *growth impairment. *genital hypoplasia. *CHARGE syndrome. *others. Also any condition that causes significant depression of the nasal bridge or midface retraction can be associated with<unk> . Examples include the craniosynostosis syndromes such as Crouzon syndrome, Pfeiffer syndrome, Treacher Collins syndrome, Apert syndrome, and Antley-Bixler syndrome.
Choanal atresia
Hypospadias
Duodenal atresia
Intestinal atresia
Gastric atresia
Cloacal exstrophy
Gastroschisis
Diaschisis