Figure 5.

Residual frontal recess cells. A coronal C.T scan of a patient admitted for revision FESS showing a residual right agger nasi cell (arrow) pneumatising within right frontal recess and a residual left type III frontal cell (arrow head) pneumatising from the left frontal recess into the frontal sinus and partly obstructing the frontal sinus ostium.

Khalil et al. BMC Ear, Nose and Throat Disorders 2011 11:4   doi:10.1186/1472-6815-11-4
Download authors' original image