Table 1.

Kudo Classification of Pit Pattern[38]

Pit pattern	Description	Suggested pathology
Type I	Round pits	Normal
Type II	Asteroid pits	Hyperplastic polyp, sessile serrated lesion
Type IIIS	Tubular or round pits, smaller than the normal pits	Adenoma, intramucosal carcinoma
Type IIIL	Tubular or round pits, larger than the normal pits	Adenoma
Type IV	Branched or gyrus-like pits	Adenoma, intramucosal carcinoma
Type VI	Irregular arrangement and sizes of type IIIS, IIIL, IV pit patterns	Intramucosal cancer, superficial submucosal cancer
Type VN	Amorphous or non-structural pits patterns	Deep submucosal cancer