Table 1

 Histopathological characteristics, endoscopic classification, and anatomical location of all lateral spreading tumour

Endoscopic classHistologyAnatomical location
AdenomaCarcinoma (stage T1)Invasive carcinoma (stage T2 or beyond)Right colonLeft colon
G-type (n = 56, 68%)2724522 (39%)34 (61%)
F-type (n = 26, 32%)3131020 (77%)6 (23%)
Total (n = 82, 100%)3037154440