Table 3.
Factors with a potential impact on the biopsy yield and quality of EUS-FNB samples.
| FNB sample diagnostic, n/ntot (%) | p-value | Cell CountEUS > 1000, n/ntot (%) | p-value | |
|---|---|---|---|---|
| Tumor size | 0.13 | 1.0 | ||
| ≤ 20 mm | 19/25 (76) | 10/25 (40) | ||
| > 20 mm | 25/27 (93) | 11/27 (41) | ||
| Tumor type | 1.0 | 1.0 | ||
| Solid | 30/35 (86) | 14/35 (40) | ||
| Cystica | 14/17 (82) | 7/17 (41) | ||
| Tumor position | 1.0 | 0.26 | ||
| Head | 17/20 (85) | 6/20 (30) | ||
| Body-tail | 27/32 (84) | 15/32 (47) | ||
| FNB-needle passes | 1.0 | 0.10 | ||
| 1–2 passes | 35/42 (83) | 14/42 (33) | ||
| 3 passes or more | 9/10 (90) | 7/11 (64) |
aTumor with a partially or entirely cystic appearance at endosonography.