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Root causes identified in cases with non-diagnostic FNA.
| Root cause | Frequency | ||
|---|---|---|---|
| Primary | Secondary | Total | |
| Method | 0 | 13 | 13 |
| No image guidance | 0 | 12 | 12 |
| No ROSE | 0 | 1 | 1 |
| Man | 11 | 0 | 11 |
| Sampling | 11 | 0 | 11 |
| Material | 7 | 2 | 9 |
| Vascular lesion | 3 | 2 | 5 |
| No discrete mass | 2 | 0 | 2 |
| Cystic lesion | 1 | 0 | 1 |
| Small lesion (1cm) | 1 | 0 | 1 |
| Machine | 0 | 2 | 2 |
| No cell block | 0 | 2 | 2 |
FNA, fine‐needle aspiration; ROSE, rapid on-site evaluation.
