Cystic lesions of the nasal cavity and the paranasal sinuses: report of two unusual cases.

The clinicopathological features of two unusual cystic lesions, one arising in the nose, a calcified mucocele or a calcified retention cyst and the other in the maxillary sinus, a dentigerous cyst originating in a supernumerary tooth, are described. The literature on these two rare lesions is briefly reviewed.