Fig. 1: Clinicopathological information of patient samples.

All data were obtained from histology reports for the 76 patient cases. a Distribution of different histological subtypes of adenomas. A small portion of lesions (6%) showed focal adenocarcinoma (AC) within adenomatous regions. b Pathology assessment showed that most were low-grade lesions (82%). c Half of the lesions were found in the sigmoid colon (49%), with a significant portion located in the rectum (16%). The rest were distributed throughout the colon. d Longest measurements of diameter listed on histology report were used; measurements of FFPE sections were used as proxy when a report did not state any measurements