“…2 Inflammatory and infectious diseases are relatively frequent in the worldwide population 3 and exhibit a wide range of symptoms and imaging features, from asymptomatic cases with incidental imaging findings 4 to spread infection in adjacent structures into the face and head, with life-threatening complications. 3 It has been documented that some populations have higher risk to the development of inflammatory sinus disease, such as patients with cystic fibrosis, 5 acute optical neuritis, 6 inflammatory bowel disease, 7 coal workers, 8 or the presence of maxillary teeth roots within the maxillary sinus. 9 Previously, it was reported that jet aircraft pilots have volume alterations in maxillary sinus, due to the exposition of diverse occupational hazards, such as high altitude and sudden movements, and multiple repetitive exposition to high gravitational force (Gz) changes.…”