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Table 6 Proportion of cases in which smear, liquid-based preparation and histology correctly distinguished specific tumor typesa

From: Endoscopic ultrasound-guided sampling of solid pancreatic masses: 22-gauge aspiration versus 25-gauge biopsy needles

  22-gauge FNA 25-gauge FNB
Specific diagnosis CS LBP Histology CS LBP Histologyb
Adenocarcinoma 27/33 23/33 10/33 24/29 23/29 18/29
Metastasis 0/0 0/0 0/0 0/2 1/2 1/2
Neuroendocrine tumor 0/3 2/3 1/3 0/1 1/1 1/1
Pseudopapillary tumor 0/1 1/1 1/1 0/1 1/1 0/1
Total 27/37 23/37 12/37 24/33 26/33 20/33
  1. FNA fine needle aspiration, FNB fine needle biopsy, CS conventional smear, LBP liquid-based preparation
  2. aOnly neoplastic cases are included
  3. bThe 25-gauge FNB group showed a better diagnostic yield in terms of specific tumor discrimination compared with the 22-gauge FNA group (P = 0.018)