Large branchiogenic cyst in a neonate producing upper airway obstruction

We report on a large branchiogenic cyst in a neonate. The etiology of these cysts is assumed to be of branchial origin because of their communication with the pharynx and their intimate association with the thyroid and thymus glands. This report documents an additional occurrence of this rare lesion. Physicians are alerted to the fact that, should massive enlargements and compromise of the respiration be present, external decompression of these cysts is feasible.