choana

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choana

(ˈkəʊənə)
n
a nasal opening situated towards the back of the nasal cavity in vertebrates
References in periodicals archive ?
Here we are presenting a case report of a neonate with CHARGE syndrome who underwent successful repair of choanal atresia under general anaesthesia with invasive monitoring.
The bird was promptly referred to the University of Georgia Zoological Medicine Service, where physical examination abnormalities included a prominent keel with an emaciated body condition (1/5) and blunted choanal papillae.
Preterm babies with meconium aspiration, congenital pneumonia, congenital anomalies like choanal atresia, tracheo-oesophageal fistula and diaphragmatic hernia.
Digital palpation of the nasopharynx was performed just before curettageto assess adenoid site, size, and degree of choanal occlusion, and then just after removal to determine whether there were any remnants and assess the opening of the posterior choana.
Maternal residential atrazine exposure and risk for choanal atresia and stenosis in offspring.
6) are prominent and emit the long and rostrally tapered rostral processes, which are more medially situated, and delimit the choanal fossa (fossa choanalis --FC) (Fig.
Embryopathy related with methamizole in the first trimester occurs in 2-4/100 babies and includes aplasia cutis, cleft palate-lip, Down syndrome, choanal atresia, tracheo-esophageal fistula, hiatal hernia, tracheomalacia, hypertrophic pyloric stenosis, hypothelia, athelia, omphalocele, anomalies of the omphalomesenteric ductus, hearing deficit, atrial septal defect, ventricular septal defect, patent ductus arteriosus, pulmonary stenosis, imperforated anus, hypospadias, anencephaly, polydactilia, small ear, broad and dispersed eyebrows, and broad nasal root (9).
Differential diagnosis included septicemia, pneumonia, choanal atresia, meningitis, persistent fetal circulation, and cardiac abnormalities.
A choanal polyp is a benign solitary sinonasal mass that originates in a paranasal sinus and secondarily extends into the nasal cavity.
Choanal swab revealed gram negative pleomorphic rods, Enrofloxacin @15mg/kg bid was added to the treatment.
Trisomy 13 is associated with choanal atresia, macrocephaly and syndactyly.
Bilateral congenital choanal atresia requires prompt intervention, to re-establish an adequate airway, because infants are obligate nasal respirators.