ECP 2023 Final Programme

Poster Sessions a Tuesday 99 ECP 2023 Dublin Tuesday, 12 Sept PS-17 031 Assessment of intra- and intertumoral heterogeneity of molecular biomarkers in locally advanced gastric cancer Grigorii Raskin, Russia N. Beliak, M. Mukhina, M. Kleshev, R. Orlova, S. Kutukova 032 Expression and amplification of FGFR2 in gastric cancer: a comparative study Grigorii Raskin, Russia M. Mukhina, E. Kravtcova, I. Tsimafeyeu, S. Tjulandin, N. Beliak, M. Kleshev, R. Orlova 033 Evaluation of well-known and candidate tumour-agnostic biomarkers with molecular pathological alterations according to tumour localisation in colorectal carcinoma: in silico analysis Zeynep Sağnak Yılmaz, Turkey S. Demir Kececi, M. Toper, S. Sarioglu 034 Revisiting early gastric cancer in search of a rare entity: “gastric adenocarcinoma of fundic-gland type” Seda Nur Sayir, Turkey H. Kahraman, A. Akur, H. Berber, S. Yüksel, B. Savaş, A. Ensari 035 STING: the key in dMMR colo-rectal cancer in the era of immunotherapy ? Guillaume Scellier, France M. Bubenheim, N. Piton, F. Di Fiore, J. Sabourin 036 Comparative analysis of Granzyme B expression in refractory coeliac disease type II, untreated coeliac disease and normal duodenal mucosa Darko Skrobo, Ireland S. Bennett, F. Murray, A. O’Donoghue, A. Hayat, V. Byrnes, C. Brodie 037 A closer look at the implications of CD68 in gastrointestinal stromal tumour behavior Irene Alexandra Spiridon, Romania A. Timofte, I. Caruntu 038 Analytical and clinical performance of the VENTANA CLDN18 (43-14A) RxDx Assay in gastric and gastroesophageal junction adenocarcinoma tissue samples for patient identification in two phase 3 trials of zolbetuximab Steven Stratton, USA L. Pang, J. Pugh, M. Kouzova, D. Baldwin, J. McDonald, J. Buckmeier, A. Guerrero, D. Moran 039 Insulinoma-associated protein 1 expression in primary neuroendocrine neoplasms of the gastrointestinal and pancreaticobiliary tracts: a study from a tertiary care hospital of Coastal India Pooja Suresh, India E. Edwin, S. Rao, S. Sreeram, H. Kini, J. Kini, S. Basavaiah, B. Vatsala 040 Cost effectiveness of Helicobacter Pylori testing in gastric biopsies Priyanka Tilekar, United Kingdom K. Robertson, M. Elgoweini 041 Clinicopathological significance of LAG3+ immune cells in gastric cancer Dita Ulase, Germany H. Behrens, S. Krüger, C. Röcken 042 Biological background of colorectal polyps and carcinomas with heterotopic ossifica- tion Anne-Marie Vos, The Netherlands L. Pijnenborg, S. van Lent-van Vliet, L. Kodach, F. Ciompi, C. van der Post, F. Simmer, I. Nagtegaal 043 Prognostic significance of tumour budding, desmoplastic reaction, and lymphocytic infiltration in patients with gastric adenocarcinoma Aysen Yavuz, Turkey K. Şimşek, A. Alpsoy, B. Altunay, E. Ocak Gedik, B. Altuntas Keskin, C. Bassorgun, A. Tatlı, G. Elpek