Chia Stanley H, Carvalho Daniela S, Jaffe Debra M, Pransky Seth M
Division of Otolaryngology, University of California San Diego Medical Center, 200 W. Arbor Drive #8891, San Diego 92103, USA.
Int J Pediatr Otorhinolaryngol. 2002 Feb 25;62(3):249-52. doi: 10.1016/s0165-5876(01)00620-6.
Choanal atresia is postulated to be secondary to an abnormality of the rupture of the buccopharyngeal membrane during the embryological period. This condition usually occurs sporadically, but has been described in siblings and successive generations. The genetics remain unclear. We present monozygotic twins with identical findings of unilateral choanal atresia and no other associated anomalies. To our knowledge, this is the first report of such an occurrence.
