The maxillary sinus is a radiolucent structure superior to the apices of maxillary teeth, visible on imaging. It is part of the maxilla bone in the upper jaw.
Maxillary Sinus is the structure that can be seen superiorly to the apices of the maxillary premolars/molars, appearing radiolucent on imaging such as a panorex. It is a key feature of the maxilla, a bone forming the upper jaw, part of the hard palate, and the orbit floor.
https://brainly.com/question/37895173