• Pneumocele is a pathologically expanding, air-containing paranasal sinus most common in the frontal sinus. To our knowledge, only six cases of pneumoceles of the maxillary sinus have been reported so far; to these we add a seventh. The pathogenesis of pneumoceles has not been fully understood. It has been postulated that a one-way valve between the nasal cavity and the affected sinus leads to increased antral pressure and sinus expansion after nose blowing. By monitoring antral pressure through a transoral puncture, we demonstrated a one-way valve between the nose and the maxillary antrum. To our knowledge, this is the first verification of the trap-valve hypothesis.
(Arch Otolaryngol Head Neck Surg 1987;113:184-186)
Wolfensberger M, Herrmann P. The Pathogenesis of Maxillary Sinus Pneumoceles. Arch Otolaryngol Head Neck Surg. 1987;113(2):184–186. doi:10.1001/archotol.1987.01860020076016
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