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Pertaining to a choana.


(kō′ă-nă) plural.choanae [Gr. choanē, funnel]
A funnel-shaped opening, esp. of the posterior nares (either of the two communicating passageways between the nasal fossae and the pharynx).
choanal (-năl), adjective


pertaining to or arising from the choanae.

choanal atresia
see imperforate buccopharyngeal membrane.
choanal slit
the sagittal slit in the hard palate of the normal bird.
choanal stenosis
choanal atresia.
References in periodicals archive ?
KEYWORDS: Neonate, CHARGE Syndrome, Choanal Atresia, Heart defects.
A choanal polyp is hypodense on CT, hypointense on T1-weighted and hyperintense on T2-weighted MR images, with peripheral contrast enhancement.
In acute cases choanal cleft, trachea and lungs were sampled.
Key features distinguishing the main differential diagnoses of VACTERL association Syndrome Features distinct from VA Fanconi anaemia Haematologic abnormalities, especially megaloblastic anaemia Pigmentation abnormalities, especially hyperpigmentation or Cafe au lait spots Propensity to develop malignancies Alagile syndrome Biliary duct abnormality Eye anomalies Facial abnormality Charge syndrome Choanal atresia Colobomata Growth impairment Ear anomalies Feingold syndrome Digital phalangeal abnormalities Microcepahly Cognitive impairment Typical facial appearance Oculo-auriculo- Microtia vertebral syndrome Hemifacial microsomia Neurocognitive impairment Deletion 22q11.
Congenital heart disease and choanal atresia with multiple anomalies.
SCID variants include cartilage-hair hypoplasia, CHARGE syndrome (coloboma, heart defect, atresia choanae [also known as choanal atresia], retarded growth and development, genital abnormality, and ear abnormality), Down syndrome, or DiGeorge syndrome.
2007) compared the dimensions of the maxillary sinuses by CT scan in seven patients with unilateral choanal atresia.
Treacher Collins syndrome with choanal atresia: a case report and review of disease features Rev Bras Otorrinolaringol.
They include allergic reaction of a nasopharynx, adenoids, hypertrophy of palatine tonsils, choanal atresia, hypertrophic rhinitis, etc.
Choanal lymphosarcoma in a 7-year-old golden retriever: Diagnosis and treatment.
It is a rare complication of a head or neck infection or an otolaryngological procedure, including tonsillectomy, adenoidectomy, mastoidectomy, choanal atresia repair, and cleft palate repair.
Choanal Atresia is a blockage or narrowing of the nasal passages by bone or cartilage.