Table 2 Results Associated with EUS-FNA and EUS-FNB
| Â | Menghini-type 21-gauge | Conventional-type 22-gauge | P value |
|---|---|---|---|
N = 14 | N = 14 | ||
Needles | Sonopsy 14 | Expect 7 | Â |
| Â | Â | Sonotip 4 | Â |
| Â | Â | EchoTip 3 | Â |
Route for puncture | Â | Â | 0.231 |
 Transgastric | 12 (86) | 8 (57) |  |
 Transduodenal | 1 (7) | 4 (29) |  |
 Transgastric and transduodenal | 1 (7) | 2 (14) |  |
Number of punctures (median [IQR]) | 4 (3–5) | 3 (1–4) | 0.016 |
Stroke length of needles (median [IQR]) | 1.6 (1.5–2.0) | 1.5 (1.5–1.9) | 0.664 |
Successful confirmation of histological diagnosis (n [%]) | 14 (100) | 8 (57) | 0.006 |
A confirmed cytological diagnosis of no malignancy (n [%]) | 14 (100) | 12 (86) | 0.142 |
Adverse events (n [%]) | 2 (14) | 0 | 0.142 |
Histological findings | |||
 Periductal lymphoplasmacytic infiltrate without granulocytic infiltration | 12 (86) | 4 (29) | 0.002 |
 Obliterative phlebitis | 1 (7) | 0 | 0.310 |
 Storiform fibrosis | 5 (36) | 0 | 0.014 |
 Abundant (> 10 cells/HPF) IgG4-positive cells | 9 (64) | 0 |  < 0.001 |
Histological diagnosis for AIP |  |  |  < 0.001 |
 Level 1 | 5 (36) | 0 |  |
 Level 2 | 4 (29) | 0 |  |