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Background
Parotid swelling is rarely caused by pneumoparotitis from retrograde insufflation of air into Stensen's duct. Previous reports have identified occupational exposures, self‐induced habits, exercise, spirometry, and short‐term positive pressure airway ventilation as causes of salivary duct insufflation.
Methods
We present 2 cases of pneumoparotitis in patients on long‐term oronasal continuous...