Brachycephalic Obstructive Airway Syndrome is a genetic disorder that compromises the upper airway most commonly in flat-faced/short-headed (brachycephalic) dog and cat breeds. Upper airway abnormalities correlated with BOAS include stenotic nares, an elongated soft palate, laryngeal collapse, extended nasopharyngeal turbinates, and others. A dog or cat with BOAS could be affected by one or more of these abnormalities.