PMC4855421_01
CT showing incomplete opacification of a hypoplastic left maxillary sinus.
gr1.jpg
PMC4855421_01_gr1.jpg
fig0005
Initial computed tomography (CT) revealed an incompletely opacified hypoplastic left maxillary sinus with mucosal thickening at the left ostiomeatal unit (Fig. 1).
Sagittal and coronal CT images showing complete opacification and implosion of the left maxillary antrum with downward traction on the orbital floor.
gr2.jpg
PMC4855421_01_gr2.jpg
fig0010
Clinical examination two months later identified a very mild degree of enophthalmos, though the face remained symmetrical (Fig. 2).
Portrait and superior perspective of enophthalmos of the left eye. Line added to demonstrate the subtlety of hypoglobus.
gr3.jpg
PMC4855421_01_gr3.jpg
fig0015
Repeat CT showed pathognomonic signs of silent sinus syndrome, with implosion of the left maxillary antrum, downward traction on the orbital floor and inward traction of both the lateral antral and nasal walls (Fig. 3).