Table 8. Fine-needle aspiration cytology (FNAC).
|
Number (n=289) |
|||
|---|---|---|---|
| FNAC | Benign tumours | Malignant tumours | Nonmalignant disease |
| C0 | 4 | 4 | 22 |
| C1 | 10 | ||
| C2 | 14 | 35 | 155 |
| C3 | 1 | 5 | |
| C4 | 14 | ||
| C5 | 1 | 23 | 1 |
C0 denotes a sample as insufficient, occasionally containing no cells at all. C1 has scant normal cells present that are too few to characterise. C2 contains normal cells that are not suspicious for malignancy. C3 displays cells, which, though suspicious, are not classifiable. C4 indicates a high probability of malignancy with inconclusive subtype. C5 is diagnostic of a particular specified malignancy.