Non-enhanced CT findings during FDG PET/CT
| No. | Lesion characteristics and location on CT and FDG PET/CT | |||||
|---|---|---|---|---|---|---|
| Nose, throat, and ear lesions | Lung lesions | Other lesions | ||||
| Uptake | Shape on CT | Uptake | Shape on CT | Uptake | Shape on CT | |
| 1 | No findings | No findings | Bronchus | Tracheobronchial wall thickening | No findings | No findings |
| 2 | Auricle, annular cartilage, vocal cord | No findings | No findings | Tracheobronchial wall thickening and stenosis | Rib cartilage | No findings |
| 3 | Auricle | No findings | No findings | No findings | lymph nodes, aorta, Joints | lymph nodes swelling |
| 4 | Cavitas nasi and paranasal sinuses, pharynx | Sinusitis | Bronchus | No findings | Multiple joints | No findings |
| 5 | Larynx, maxillary sinus | No findings | Bronchus | Thickening of bronchi and lobar bronchi | Joints | Lymph nodes swelling |
| 6 | No findings | No findings | Trachea and bronchus | Tracheal wall thickening and bronchostenosis | No findings | No findings |
| 7 | Nasal cartilage, laryngeal cartilage | Swelling of laryngeal soft tissue | Trachea and bronchus | Smooth tracheal wall thickening | Rib cartilage | No findings |
| 8 | Auricle, cartilage of the auditory canal | Inflammatory tissue filling the tympanic cavity and mastoid | No findings | No findings | lymph nodes | No findings |
| 9 | Hypopharynx | No findings | No findings | Bronchial wall thickening | All rib cartilage, sternal angle, joints | No findings |
| 10 | Larynx | No findings | Trachea and bronchus | Tracheobronchial wall thickening and stenosis | All rib cartilage, lymph nodes | lymph nodes swelling |
| 11 | Larynx | n.d. | Trachea and bronchus | n.d. | All rib cartilage | n.d. |
| 12 | Larynx | No findings | Trachea and bronchus | Tracheobronchial wall thickening | No findings | No findings |
| 13 | No findings | No findings | Trachea and bronchus | Tracheobronchial wall thickening | Joints | No findings |