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Table 4 Pathologic findings of resected specimens

From: Therapeutic outcomes of endoscopic papillectomy for ampullary neoplasms: retrospective analysis of a multicenter study

  N (%)
Resection specimen size (mm) 13.5 ± 5.9 (2–32)
Pathologic findings
 Adenocarcinoma 17 (16.3)
 Adenoma
  Low grade 45 (43.2)
  High grade 15 (14.4)
  Hyperplastic polyp 8 (7.7)
  Inflammation 8 (7.7)
  Adenomyoma 4 (3.8)
  Carcinoid 3 (2.9)
  Lymphoma 1 (0.9)
Resection margin
 Negative 93 (89.4)
 Positive 11 (10.6)
  1. Values are presented as mean ± SD, numbers (%) or number (range)