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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 ?
MEDICAL PROBLEMS IN THE SAMPLE OF 25 CHILDREN CONDITION PERCENTAGE Delayed Motor Milestones 96 Vestibular Problems 96 Coloboma 88 Swallowing Problems 88 Heart Defect 88 Sensorineural Hearing Loss 84 Characteristic CHARGE External Ear 84 Growth Deficiency 60 Choanal Atresia or Stenosis 60 Frequent Middle Ear Infections 52 Genital Hypoplasia 48 Renal Problems 48 Tactile Defensiveness 40 Facial Palsy 36 Tracheoesophageal Fistula 28 Anosmia 20 Spine Anomalies 16 Cleft Lip or Palate 12 Hand Anomalies 12 Abdominal Defects 8 TABLE 2.
Tucker K and Lipson A: Choanal atresia as a feature of ectrodactyly-ectodermal dysplasia-clefting (EEC) syndrome: a further case.
Systemic associations of optic disc coloboma include central nervous system (CNS) malformations, cysts, chromosomal abnormalities (Trisomy 13 and Trisomy 22 (cat-eye syndrome)) and CHARGE (coloboma, heart defects, choanal atresia, retarded mental development, genital and ear abnormalities).
Propylthiouracil (PTU) has been the preferred therapy for Graves' disease during pregnancy, especially during first-trimester organogenesis, because methimazole (MMI) and carbimazole have been associated with aplasia cutis and rare embryopathy including choanal atresia, esophageal atresia, tracheoesophageal fistula, and athelia.
8 kg girl with Pfeiffer's syndrome had been admitted previously, aged three days, with central and obstructive apnoea from severe choanal stenosis.
Computed Tomographic Scan Results 1 Unavailable 2 Opacification, expansion of sinus walls 3 Sinus changes "consistent with fungal sinusitis" 4 Pansinusitis with opacification 5 Opacification of sinuses and fullness 6 Opacification of sinuses 7 Near total opacification of sinus 8 Pansinusitis, deviated septum 9 Polyps with obstruction and mucocele 10 Opacification with choanal polyp Table 2.
In this case, a choanal swab sample and mucoid discharge collected from the trachea and upper airways at necropsy were submitted to the bacteriology department at the Diagnostic Center for Population and Animal Health for culture.
Most choanal polyps arise from the maxillary sinus, and they are called antrochoanal polyps.
Previous studies of women living in areas with TCE-or PCE-contaminated drinking water have suggested an association between TCE exposure, and cardiac defects, oral clefts, neural tube defects (NTDs), and choanal atresia [Bow et al.
Images of a case of unilateral choanal atresia diagnosed in a 35-year-old woman are presented.
Conjunctival, choanal, and cloacal swabs were negative by polymerase chain reaction (PCR) testing for Chlamydia species, and choanal and cloacal combined swabs were negative by PCR testing for West Nile virus DNA.
A tracheostomy tube was placed, and choanal atresia repair was eventually performed.