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Table 1 The results of a study of lymph node metastasis in patients with pedunculated early-stage colorectal cancer

From: Pedunculated early colorectal cancer with nodal metastasis: a case report

Author Published year Number of patients Number of surgical resection Rate of lymph node metastasis Rate of lymph node metastasis
Head invasion Stalk invasion
Shatney 1976 28 23 4% (1/23) 0% (0/14) 1% (1/9)
Nivatvongs 1978 16 3 33% (1/3) 0% (0/2) 100% (1/1)
Colacchio 1981 39 24 25% (6/24) 29% (5/17) 14% (1/7)
Cooper 1983 49 29 14% (4/29) 0% (0/26) 17% (4/23)
Pines 1990 43 19 0% (0/19) 0% (0/11) 0% (0/8)
Matsuda 2011 384 230 3.5% (8/230) 0% (0/101) 6.2% (8/129)
Asayama 2016 176 81 4.9% (4/81) 2.4% (1/41) 7.5% (3/40)
Kimura 2016 76 76 11.8% (9/76) 13.3% (4/30) 10.9% (5/46)