Paranasal sinuses

In the study of paranasal sinuses, it is possible to observe maxillary, ethmoidal, frontal, sphenoidal sinuses, and relationship with structures of the nasal cavities and retro pharynx. It is possible to analyze lesions of odontogenic origin such as inflammatory, cystic and tumorous lesions and those of the maxillary sinus, as well as the presence of adenoids in the retropharynx.