ECP 2023 Final Programme

E-Posters 133 ECP 2023 Dublin E-PS-08 E-PS-07 040 PD-L1 expression in gastro-entero-pancre- atic neuroendocrine neoplasms and its impact on possible new therapeutic opportunities Andrei Dorel Plopeanu, Romania A. Yavas, L. Haeberle, I. Esposito 041 Survivin expression as a potential prognos- tic marker in gastro-entero-pancreatic neuroendocrine neoplasms Andrei Dorel Plopeanu, Romania A. Yavas, L. Haeberle, I. Esposito 042 Epstein Barr Virus-associated post-trans- plant smooth muscle tumours (EBV- PTSMT) of uncertain behaviour. A short series including hepatic and multicentric tumours with literature review Yolanda Rodriguez, Spain A. Illarramendi, A. Luzmila-Vasquez, E. Revilla, F. Cambra, C. Barcena 043 Unusual localisation of plasmacytoma: pancreatic presentation Zeynep Sağnak Yılmaz, Turkey I. Saygin, S. Aydin Mungan, Z. Turkmen Usta 044 Should we process all gallbladder specimens? An analysis of potential clues to a diagnosis of incidental carcinoma Chiara Scicluna, United Kingdom L. McElroy, F. Roberts, V. Gough, G. Kohnen 045 Combined loss of numb and p53 promotes glycogen cumulative hepatomegaly and hepatocarcinogenesis Yuke Shu, China Y. Shi 046 Porto-sinusoidal vascular disorder in patients with Turner's syndrome Eleni Stoupi, Greece I. Grypari, S. Siasiakou, E. Stravodimou, K. Syrigos, D. Tiniakos 047 Primary mixed adenoneuroendocrine carcinoma (MANEC) of the gallbladder and synchronous renal cell carcinoma of the right kidney. A co-existence never described before Helen Trihia, Greece G. Stanc, E. Kontis, K. Stefanidis, E. Souka, M. Paraskevaides 048 Schwannomatosis in periampullary duodenum and peripancreatic tissue mimicking malignancy, challenging case report Begum Yeni Erdem, Turkey N. Berker, G. Unverengil, K. Serin, M. Buyuk 049 Adult pancreatoblastoma (PB): report of a rare and challenging case diagnosed on core needle biopsy (CNB) Simone Zanella, Italy S. Uccella E-PS-08 E-Posters Digital and Computational Pathology 001 Improving PD-L1 quality control using a dynamic range cell line and Qualitopix analysis Nils ‘t Hart, The Netherlands L. Gal, M. Grønning Nielsen, H. Høeg 002 Improving breast cancer diagnosis through weakly supervised learning: promising results in malignancy detection and subtyping Alon Alexander, Israel C. Mayer, N. Balint Lahat, I. Barshack, S. Ben Amitay 003 European laboratories capabilities for digital pathology and computer assisted algorithms Neil Atkey, United Kingdom P. Ramos Cirillo, O. McLeod, D. Vance, A. Capece, B. Bisaro, J. Tsiampali, R. Assemat, P. Garcia, Y. Pattni