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Table 4 Pit pattern classification in the carcinoma area of serrated adenocarcinoma

From: Clinicopathologic and endoscopic features of early-stage colorectal serrated adenocarcinoma

Epithelial serration Pit pattern
II Open-II IIIL IV V
Present (n = 17) 0 (0) 1 (6) 2 (12) 2 (12)a 12 (70)c
Absent (n = 23) 1 (4) 0 (0) 3 (13) 10 (44)b 9 (39)d
Total (n = 40) 1 (3) 1 (3) 5 (13) 12 (30) 21 (53)
  1. a vs. b, c vs. d: p < 0.01. Values in parentheses are percentages (%)