Intensive surveillance endoscopy for multiple gastrointestinal tumors in a patient with constitutional mismatch repair deficiency: case report

Table 1 Clinicopathological characteristics of colon polyps treated during surveillance colonoscopy after surgery

Session	Months after surgery	Total number of colon polyps removed	Carcinoma diagnosis	Carcinoma characteristics
Session	Months after surgery	Total number of colon polyps removed	Carcinoma diagnosis	Location	Growth type	Size (mm)	pT stage*	Horizontal margin	Vertical margin
1	2	22	Yes	S	Polypoid	20	pTis	(−)	(−)
				R	Polypoid	17	pTis	(−)	(−)
2	7	42	No
3	12	23	Yes	D	LST-NG	8	pT1	(ND)	(ND)
4	18	12	No
5	24	12	No
6	30	19	No

S sigmoid colon, R rectum, D descending colon, LST-NG laterally spreading tumor non-granular type, ND not determined
*Based on classification system by the Union for International Cancer Control

ISSN: 1471-230X