PT  - JOURNAL ARTICLE
AU  - Black, C M
AU  - Dungan, D
AU  - Fram, E
AU  - Bird, C R
AU  - Rekate, H L
AU  - Beals, S P
AU  - Raines, J M
TI  - Potential pitfalls in the work-up and diagnosis of choanal atresia.
DP  - 1998 Feb 01
TA  - American Journal of Neuroradiology
PG  - 326--329
VI  - 19
IP  - 2
4099  - http://www.ajnr.org/content/19/2/326.short
4100  - http://www.ajnr.org/content/19/2/326.full
SO  - Am. J. Neuroradiol.1998 Feb 01; 19
AB  - To increase an awareness of the developmental anatomy of the nasal cavity as it applies to the radiologic work-up of choanal atresia and frontoethmoidal cephaloceles, we report two cases that demonstrate potentially serious imaging pitfalls. Two neonates with nasopharyngeal obstruction were imaged with CT and MR. Both patients had surgically proved bilateral bony choanal atresia. In addition to choanal atresia, CT showed a radiolucent, or nonossified cribriform plate and mucoid secretions within the nasal fossa, adjacent to the cribriform plate, which approximated the attenuation of brain parenchyma. In one of the patients, a preoperative diagnosis of nasopharyngeal encephalocele resulted in surgical exploration. At surgery, however, the cartilaginous cribriform plate was found to be intact.