ECP 2023 Final Programme

Sunday, 10 Sept Scientific Programme a Sunday 31 ECP 2023 Dublin 008 10:40–10:50 Characteristics of a modern, screened UICC stage II colon cancer cohort Maria Pihlmann Kristensen, Denmark U. Korsgaard, I. Zlobec, T. Frøstrup Hansen, H. Hager, S. Kjær-Frifeldt 009 10:50–11:00 A new algorithm for coeliac disease based on gamma delta intraepithelial lymphocytes detected with an antibody working on FFPE sections Eda Nur Kozan, Turkey C. Tuna Kirsaclioglu, A. Kansu, A. Soykan, D. Gokmen, B. Savaş, A. Ensari 010 11:00–11:10 Specific morphological characteristics predict microsatellite instability status in gastric cancer João Almeida, Portugal J. Silva, L. Mascarenhas-Lemos, C. Neto do Nascimento, D. Sousa Marques, X. Wen, L. Pinho, R. Maio, P. Pontes, L. Cirnes, M. Cravo, F. Carneiro, I. Gullo 011 11:10–11:20 The complexity of shapes; how the circularity of tumour nodules impacts prognosis in colorectal cancer Nelleke Brouwer, The Netherlands A. Khan, J. Bokhorst, F. Ayatollahi, J. Hay, F. Doubrava-Simmer, N. Hugen, H. de Wilt, I. Zlobec, J. Edwards, I. Nagtegaal 012 11:20–11:30 Tumour deposits – a heterogeneous group of lesions with different metastatic potential Ayse Selcen Oguz Erdogan, The Nether- lands N. Brouwer, V. Angerilli, T. Haddad, S. Lent-vanVliet, N. Rutgers, F. Doubrava- Simmer, I. Nagtegaal 013 11:30–11:40 Stroma AReactive Invasion Front Area (SARIFA) as novel prognostic biomarker in colorectal cancer is characterized by a distinct transcriptional signature associated with stromal cell infiltration and lipid metabolism Nic Gabriel Reitsam, Germany V. Grozdanov, B. Grosser, C. Löffler, H. Muti, J. Kather, B. Märkl 014 11:40–11:50 Tumour stroma ratio and tumour budding in colorectal adenocarcinoma and its association with clinico-pathological parameters Adil Aziz Khan, India S. Zaheer 015 11:50–12:00 Early invasive (pT1) colorectal cancer: low PD-L1 expression in immune cells predicts the presence of nodal metastasis Giulia Vocino Trucco, Italy G. Benazzo, A. Ricci, L. Mangherini, E. Falco, A. Gambella, L. Bertero, P. Cassoni OFP-02 Joint Oral Free Paper Session 08:30–12:00 Wicklow Meeting Room 1 Gynaecological Pathology Cytopathology Chairs: Baljeet Kaur, United Kingdom Spasenija Savic-Prince, Switzerland 001 08:30–08:40 CK17 and SOX2 immunohistochemistry in the distinction of HPV-independent p53 wild-type verruciform acanthotic vulvar intraepithelial neoplasia (vaVIN) from its mimickers and margin assessment Eleanor Cook, USA K. Van de Vijver, C. Parra-Herran 002 08:40–08:50 Opening the black box: validating AI-based findings with spatial transcriptomics in high-grade serous ovarian carcinoma Anna Laury, Finland S. Zheng, O. Youssef, N. Aho, S. Hänninen, J. Tang, O. Carpen 003 08:50–09:00 Is it time to move towards a new classifica- tion of high grade endometrial stromal sarcoma? Damiano Arciuolo, Italy S. Patrizi, S. Vallese, R. Alaggio, S. Sfregola, B. Padial Urtueta, A. Travaglino, M. Valente, I. Giovannoni, G. Milano, L. Pedace, C. Nardini, L. Pedone Anchora, G. Zannoni, E. Miele