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August 1974

Pneumocele of the Maxillary Sinus

Author Affiliations

From the Department of Otolaryngology, University of Toronto and the Mount Sinai and Sunnybrook hospitals, Toronto (Dr. Noyek); and the Department of Radiology, Manhattan Eye, Ear and Throat Hospital, and the New York Hospital-Cornell University Medical Center, New York (Dr. Zizmor).

Arch Otolaryngol. 1974;100(2):155-156. doi:10.1001/archotol.1974.00780040161016

Pneumocele of the maxillary sinus has been observed for the first time, to our knowledge. This abnormality probably resulted from a physiologic block to rapid equilibration of intrasinus air pressure through the major sinus ostium as a result of some abnormality producing a one-way valvular mechanism. Repeated air-trapping secondary to sneezing or autoinflation may have produced chronic distention within the maxillary sinus. Roentgenographic findings include bone dehiscence on plain films or tomograms, a normally aerated or hyperlucent sinus, and expansion of the sinus into its various anatomic recesses.

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