- Paranasal sinus mucoceles are benign lesions that slowly enlarge and erode adjacent bone.
- Commonly involve the frontal and ethmoidal sinuses
- Mucoceles contain mucoid secretion and desquamated epithelium.
- Exact etiology is unkown. They may develop when communication between the sinus and the nasal cavity is obstructed.
- Intracranial extension
 Imaging Findings
- On CT scans, the location and the expansile, destructive nature of the lesion are characteristic.
Patient #2: Mucopyocele
 See Also
 External Links
- Hilton I. Price, Solomon Batnitzky, Charles A. Karlin, and Richard L. Gilmore. Computed tomography of benign disease of the paranasal sinuses. RadioGraphics 1983 3: 107-140.