A 7-week-old infant with severe sleep apnea underwent polysomnography that revealed as many as 455 obstructive apneas per night; the apneic episodes had a mean duration of 34 s. A growing tumor in the neck, a parapharyngeal cystic hygroma, was discovered and surgically removed. The infant's condition improved dramatically, and a follow-up polygraphic recording was normal. During the following 10 months the child's condition remained stable. The case reported illustrates a rare cause of severe sleep obstructive apnea. It also reinforces the need for a complete medical approach to the diagnosis and treatment of obstructive sleep apnea in infants.
Kahn, A., Blum, D., Hoffman, A., Hamoir, M., Moulin, D., Spehl, M., & Montauk, L. (1985). Obstructive sleep apnea induced by a parapharyngeal cystic hygroma in an infant. Sleep, 8(4), 363-366. https://hdl.handle.net/2078.5/128453 (Original work published 1985)