Table 2.
Correlation of FNA category to surgical pathology and overall malignancy rate for each category
| FNA category |
Surgical pathology (%) |
Malignancy rate (%) | |||
|---|---|---|---|---|---|
| PTC | FTC | MTC | Other | ||
| Unsatisfactory |
14.5 |
0.0 |
0.0 |
3.6 |
18.2 |
| Benign |
14.9 |
0.0 |
0.0 |
1.1 |
16.0 |
| Abnormal |
22.2 |
1.2 |
0.6 |
0.6 |
24.7 |
| SFN |
23.9 |
6.5 |
0.0 |
2.2 |
32.6 |
| SFM |
76.5 |
0.0 |
11.8 |
5.9 |
94.1 |
| Malignant | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 |
Values are expressed as percentages of all FNAs in each category. FNA – fine needle aspiration, SFN – Suspicious for Neoplasm, SFM – Suspicious for Malignancy.