Table 4.
Cytopathological results for the Osaka Medical College (OMC) system for each final pathology
| 1-1 Inadequate | 1-2 Cyst contents | 2 Non-neoplastic | 3 AUS | 4-1 Benign: (histology confirmed) | 4-2 Benign: (histology unconfirmed) | 5 SUMP | 6-1 Suspicious for malignancy | 6-2 Malignant: (only) | 6-3 Malignant: (grade confirmed) | 6-4 Malignant: (histology/grade confirmed) | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Malignant tumor | ||||||||||||
| Mucoepidermoid carcinoma | 8 (6/2) | 1 (1/0) | 3 (2/1) | 2 (1/1) | 3 (3/0) | 7 (4/3) | 4 (3/1) | 3 (1/2) | 3 (1/2) | 17 (4/13) | 51 | |
| Carcinoma ex pleomorphic adenoma | 2 (1/1) | 4 (2/2) | 3 (3/0) | 3 (0/3) | 1 (0/1) | 6 (2/4) | 4 (1/3) | 6 (2/4) | 29 | |||
| Adenoid cystic carcinoma | 3 (2/1) | 1 (1/0) | 2 (2/0) | 3 (3/0) | 1 (1/0) | 3 (0/3) | 9 (8/1) | 22 | ||||
| Salivary duct carcinoma | 1 | 1 | 1 | 8 | 7 | 18 | ||||||
| Secretory carcinoma | 1 | 1 | 2 | 1 | 3 | 1 | 7 | 16 | ||||
| Acinic cell carcinoma | 1 | 1 | 2 | 1 | 1 | 6 | 12 | |||||
| Basal cell adenocarcinoma | 2 | 2 | 4 | 1 | 1 | 1 | 11 | |||||
| Epithelial-myoepithelial carcinoma | 5 | 2 | 3 | 1 | 11 | |||||||
| Squamous cell carcinoma | 2 | 1 | 1 | 1 | 4 | 9 | ||||||
| Adenocarcinoma, not otherwise specified | 1 | 1 | 1 | 3 | 6 | |||||||
| Myoepithelial carcinoma | 1 | 2 | 1 | 4 | ||||||||
| Benign tumor | ||||||||||||
| Pleomorphic adenoma | 40 | 3 | 7 | 3 | 515 | 16 | 12 | 2 | 3 | 1 | 3 | 605 |
| Warthin tumor | 34 | 2 | 10 | 3 | 166 | 6 | 3 | 1 | 225 | |||
| Basal cell adenoma | 11 | 21 | 11 | 3 | 1 | 47 | ||||||
The number in parentheses indicates each case by histological grade (low- or intermediate/high grade)
AUS atypia of undetermined significance, SUMP salivary gland neoplasm of uncertain malignant potential