Table 1 Frequency distribution of sinusal abnormalities in images of 703 patients and 1406 sinuses (n = 1268 lesions)
From: Occurrence of maxillary sinus abnormalities detected by cone beam CT in asymptomatic patients
Type of abnormalities | Right side | Left side | Total |
|---|---|---|---|
Inflammatory | |||
Mucosal thickening | 422 (33.2%) | 416 (32.8%) | 838 (66.0%) |
Retention cysts | 49 (3.8%) | 81 (6.3%) | 130 (10.1%) |
Opacification | 54 (4.2%) | 46 (3.6%) | 100 (7.8%) |
Sinus Polyps | 49 (3.8%) | 24 (1.8%) | 73 (5.6%) |
Antrolith | 24 (1.8%) | 19 (1.4%) | 43 (3.2%) |
Iatrogenic | |||
Oroantral communication | 18 (1.4%) | 11 (0.8%) | 29 (2.2%) |
Traumatic | |||
Fracture | 10 (0.7%) | 10 (0.7%) | 20 (1.4%) |
Neoplasia | |||
Malignant tumours | 7 (0.5%) | 7 (0.5%) | 14 (1.0%) |
Odontogenic lesions | |||
Inflammatory cysts | 2 (0.2%) | 3 (0.2%) | 5 (0.4%) |
Odontogenic cysts | 2 (0.2%) | 2 (0.2%) | 4 (0.3%) |
Benign odontogenic tumours | 3 (0.2%) | 1 (0.1%) | 4 (0.3%) |
Congenital | |||
Hypoplasia | - | 3 (0.2%) | 3 (0.2%) |
Bone-related lesions | |||
Fibrous dysplasia | 2 (0.2%) | 1 (0.1%) | 3 (0.2%) |
Ossifying fibroma | 1 (0.1%) | 1 (0.1%) | 2 (0.2%) |