Rhinoscopic Clinic
This patient who had sinus surgery 15 years previously presented with recurrent bilateral sinusitis involving the ethmoid and maxillary sinuses as shown by computed tomography (CT). Of note was the CT finding of marked differences in the ethmoid roof on the right and left sides. There was a significant difference in the height of the ethmoid roof and a marked difference in the thickness of the bone of the right and left ethmoid roof.



