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FIGURE 106.1 A: Postinjury edema may mask underlying nasal bone deformity. B: Nasal
deformity manifests as edema subsides.

Sinus Barotrauma
Sinus barotrauma occurs when changes in pressure are not equalized by the sinus
ostia between the paranasal sinuses and nasal cavities. Increased differential in
negative pressure causes mucosal blood vessel engorgement followed by
hemorrhage into the sinuses. Patients usually present with sinus pain and a history