MRI scoring system and MRI results for 77 patients with suspected NPC (group 2)
| Score | MRI Findings | No. of Patients | % of Patients |
|---|---|---|---|
| 1 | Normal nasopharynx | 46 | 60 |
| 2 | Normal nasopharynx with lymphoid tissue in the adenoids | 15 | 19 |
| 3 | Mild diffuse mucosal thickening with the signal intensity of mucosa | 9 | 12 |
| 4 | Focal mucosal thickening with the signal intensity of NPC | 2 | 3 |
| 5 | Definite NPC | 5 | 6 |
Note:—NPC indicates nasopharyngeal carcinoma.