Table 2.
The CT and MRI findings of the five cases.
| Case | Size on CT (mm) | CT (bone destruction) | MRI (T1-weighted) | MRI (T2-weighted) | MRI (Gd-DPTA) | |||
|---|---|---|---|---|---|---|---|---|
| Central | Surrounding | Central | Surrounding | Central | Surrounding | |||
| I | 43 × 57 × 46 | +(L,P) | Low | Low | High | Iso to high | High | Low |
| II | 37 × 28 × 30 | +(L) | Low | Low to iso | High | Iso to high | High | Low |
| III | 30 × 31 × 28 | +(L) | Low | Low | High | high | Iso to high | Low to iso |
| IV | 35 × 31 × 29 | +(L) | Low | Low to iso | High | high | Iso to high | Low to iso |
| V | 25 × 30 × 27 | +(L,P) | Low | Low to iso | High | Iso to high | High | Low |
L: lateral wall of nasal cavity; P: posterior wall of maxillary sinus; Low: low signal intensity; iso: iso signal intensity; high: high signal intensity; central: central portion of the mass; surrounding: surrounding portion of the mass; Gd-DPTA: Gd-DPTA enhanced.