Table 3.
Cytopathological results for the Osaka Medical College (OMC) system for salivary gland tumors.
| 1-1 | 1-2 | 2 | 3 | 4-1 | 4-2 | 5 | 6-1 | 6-2 | 6-3 | 6-4 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Malignant (n = 194) (113/81) |
26 (18/8) |
2 (2/0) |
5 (4/1) |
0 |
12 (9/3) |
13 (13/0) |
23 (15/8) |
13 (10/3) |
18 (7/11) |
21 (6/15) |
61 (29/3) |
| Benign (n = 981) |
133 | 20 | 27 | 8 | 717 | 38 | 26 | 4 | 3 | 1 | 4 |
| Total (%) |
13.5 | 1.9 | 2.7 | 0.7 | 62.0 | 4.3 | 4.2 | 1.4 | 1.8 | 1.9 | 5.5 |
| ROM (%) |
16.4 | 9.1 | 15.6 | 0.0 | 1.6 | 25.5 | 46.9 | 76.5 | 85.7 | 95.5 | 93.8 |
The number in parentheses indicates each case by histological grade (low- or intermediate-/high-grade). ROM, risk of malignancy.