Table 3

Clinicopathological characteristics of metachronous advanced neoplasia

Group/ examinationAgeGenderLocation*Morphology†Size (mm)Histology
2-examination/
first F/U
60sFA0-IIa (LST-NG)10HGD‡
60sMT0-IIa (LST-NG)12LGD§
60sFS0-Isp10LGD
50sFS0-Isp11LGD
60sMA0-IIa (LST-NG)10HGD
40sMS0-IIa8HGD
2-Examination/
second F/U
50sMT0-IIa (LST-G)14LGD
60sMT0-Isp10LGD
60sMRa0-Isp10LGD
50sMRbType 220Invasive ca¶
60sFS0-IIa (LST-NG)13HGD
50sMD0-IIa+IIc (LST-NG)12HGD
1-examination/
F/U
60sMA0-IIa (LST-NG)16HGD
60sMS0-Is10HGD
60sMRS0-Is9HGD
60s**MT0-IIa (LST-NG)13LGD
60s**MS0-Isp10LGD
50sFD0-IIa (LST-NG)10LGD
60sMC0-IIa (LST-G)12HGD
60sFC0-IIa (LST-NG)18HGD
60sMRb0-Is7HGD
50sMS0-IIa (LST-NG)10LGD
60sMT0-Isp5HGD
60sFRb0-Is10LGD
40sFS0-IIa (LST-NG)15LGD
60sMD0-IIa (LST-NG)25HGD
60sMC0-IIa (LST-NG)12LGD
60sMT0-IIa (LST-NG)15LGD
50sMA0-IIa (LST-NG)13LGD
  • *C: caecum, A: ascending colon, T: transverse colon, D: descending colon, S: sigmoid colon, RS: rectosigmoid, Ra: upper rectum, Rb: lower rectum.

  • †0-IIa: flat, 0-Is: sessile, 0-Isp: semi-pedunculated, Type 2: Borrmann classification.

  • ‡High-grade dysplasia.

  • §Low-grade dysplasia.

  • ¶Invasive cancer (online supplemental figure 1).

  • **Same patient.

  • HGD, high-grade dysplasia; LGD, low-grade dysplasia; LST-G, laterally spreading tumour, granular type; LST-NG, laterally spreading tumour, non-granular type.