Answer :
Transilluminating the sinuses.
Transillumination of the maxillary sinuses should be done if they are sensitive to palpation. A strong light is directed at or through the region to be studied in transillumination, a diagnostic method. The approach was initially explained for the purpose of sinus illness diagnosis.
The paranasal sinus known as the maxillary sinus (a hollow space in the bones around the nose). One in each of the two big maxillary sinuses, located in the cheek region close to the nose, are the maxillary bones.
To prevent the nose from drying out, the maxillary sinuses are lined with mucus-producing cells.
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