045. Anatomy Maxillary Sinus.  

for case presentation, arrange a live session in zoom like plateform and inform. I will chair

nice.Good lucks

yes,that is possible only in local anaesthesia

This is a test to evaluate a postural change during sinus ultrasound, compared with CT scan, in case of partial sinusogram , to differentiate air-fluid level from mucosal thickening esp in mechanically ventillated patients A partial sinusogram is defined as the sole visualization of the hyperechogenic posterior wall of the sinus and means air fluid level which is seen in sinusitis.Patients examined by sinus ultrasound in half-sitting position. After that, a postural change is performed and ultrasound repeated in supine position. If the partial sinusogram disappeared when the patient was placed in a supine position means a positive test, If the partial sinusogram did not disappear (negative test), we consider it as a mucosal thickening.

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