Figure 1.

Coronal (A), axial (B), and sagittal (B,C) paranasal sinus computed tomography images showing a mucocele of the nasal cavity. (A) Coronal image showing the extensive mucocele filling the nasal cavity without orbital extension. The nasal septum has deviated to the left side due to the mass effect (white arrows). (B) Axial image showing the originating site of the mucocele from the middle concha (white arrowhead). (C) Sagittal image of the mucocele. Note that the cranial base is intact without extension into the cranial fossa (thin white arrows).