PMID- 30711964 OWN - NLM STAT- MEDLINE DCOM- 20190220 LR - 20190320 IS - 1791-7530 (Electronic) IS - 0250-7005 (Linking) VI - 39 IP - 2 DP - 2019 Feb TI - Crypts With Corrupted Shapes in Non-polypoid Adenomas. PG - 833-838 LID - 10.21873/anticanres.13182 [doi] AB - BACKGROUND: Colonic crypts with normal epithelial lining exhibiting corrupted shapes (NECS) have been previously found beneath the adenomatous tissue of polypoid conventional adenomas, in both rats and humans. AIM: To assess the frequency of NECS in non-polypoid colonic flat adenomas (FAs) and lateral-spreading adenomas (LSAs). MATERIALS AND METHODS: Histological hematoxylin and eosin-stained sections from 51 non-polypoid colonic adenomas were scrutinized over a 10-mm field of vision (FOV). FAs were regarded lesions encompassed within the FOV and LSAs as those surpassing that limit. The NECS/mm ratio was calculated in individual lesions as the number of NECS beneath the adenomatous tissue, divided by the length (mm) of the FA and LSA. RESULTS: Out of the 51 non-polypoid adenomas, 27 were FAs and the remaining 24 LSAs. All 51 non-polypoid lesions were tubular adenomas. The mean number of NECS in FAs was 6.29 (range=2-10) and in LSAs was 15.29 (range=7-41) (p<0.05). On the other hand, the mean NECS/mm ratio in FAs was 0.94 (range=0.50-2.00) and in LSAs was 0.92 (range=0.40-2.93). Thus, no essential differences in the number of NECS/mm was found between FA and LSA. CONCLUSION: The accretion of NECS below the neoplastic canopy of FA and LSA contrasts with the rare occurrence of NECS in normal colonic mucosa. This finding emerges as a previously unaddressed major event, an event that might play an important role in the histogenesis of non-polypoid adenomas of the colon. CI - Copyright(c) 2019, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved. FAU - Rubio, Carlos A AU - Rubio CA AD - Gastrointestinal and Liver Research Laboratory, Department of Pathology, Karolinska Institute and University Hospital, Stockholm, Sweden Carlos.Rubio@ki.se. FAU - Schmidt, Peter T AU - Schmidt PT AD - Department of Medicine Solna, Center for Digestive Diseases, Karolinska Institute and University Hospital, Stockholm, Sweden. LA - eng PT - Journal Article PL - Greece TA - Anticancer Res JT - Anticancer research JID - 8102988 SB - IM MH - Adenoma/diagnosis/*pathology MH - Colon/*pathology MH - Colonic Neoplasms/diagnosis/*pathology MH - Humans MH - Intestinal Mucosa/*pathology MH - Phenotype MH - Polyploidy MH - Reproducibility of Results OTO - NOTNLM OT - Colon OT - crypts OT - distortions OT - flat adenomas OT - lateral-spreading adenomas EDAT- 2019/02/04 06:00 MHDA- 2019/03/21 06:00 CRDT- 2019/02/04 06:00 PHST- 2018/12/08 00:00 [received] PHST- 2018/12/14 00:00 [revised] PHST- 2018/12/18 00:00 [accepted] PHST- 2019/02/04 06:00 [entrez] PHST- 2019/02/04 06:00 [pubmed] PHST- 2019/03/21 06:00 [medline] AID - 39/2/833 [pii] AID - 10.21873/anticanres.13182 [doi] PST - ppublish SO - Anticancer Res. 2019 Feb;39(2):833-838. doi: 10.21873/anticanres.13182.