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Table 1 Histology distribution of resected polyps

From: Synchronous polypectomy during endoscopic diagnosis of colorectal cancer – is the risk of tumour implantation at the polypectomy site significant?

Polyp histology Group A* Group B^ Total Number (%) n = 469
Hyperplastic 31 88 119 (25.4)
Serrated adenoma 13 9 22 (4.7)
Tubular adenoma 77 207 284 (60.6)
Tubullovillous adenoma 11 24 35 (7.5)
Villous adenoma 0 1 1 (0.2)
Data missing 3 5 8 (1.7)
  1. Group A* - Patients who had all synchronous polypectomy sites resected
  2. Group B^ - Patients who had synchronous polypectomy sites left in situ