ECP 2022 Final Programme

Poster Sessions a Sunday 83 ECP 2022 Basel Sunday, 4 Sept PS-02 009 Assessment of TP53 and CDKN2A status can be a predictive marker of malignant transformation of sinonasal inverted papilloma Soohyeon Kwon, Republic of Korea E. Kim, J. Paik, J. Chung, J. Wee, S. Cho, T. Won, J. Kim, C. Rhee, H. Kim 010 Ossifying fibroma of the jaws: a clinico- pathological case series study Meriam Triki, Tunisia S. Makni, S. Graja, O. Boudawara, N. Gouiaa, W. Ghribi, T. Boudawara, R. Kallel 011 Verification and validation of the anti-PD-L1 antibody, clone 22C3 on a laboratory developed test Shane Brennan, Ireland J. O’Neill, S. Kennedy 012 The accuracy of head and neck core needle biopsies and fine needle aspirates at a large teaching hospital Paul Hankinson, United Kingdom R. Gorania, A. Khurram 013 Transcription factors profile in sinonasal neuroendocrine neoplasms (snNENs) and olfactory neuroblastoma (ONB) Fabiana Pettenon, Italy C. Facco, A. Chiaravalli, M. Turri-Zanoni, P. Castelnuovo, S. La Rosa, M. Cerati, F. Sessa, S. Uccella 015 Cervical lymph node extemporaneous assessment by confocal microscopy during surgery: an alternative to frozen section examination? Odile Casiraghi, France A. Villard, A. Aupérin, I. Breuskin, S. Asmandar, M. Abbaci 016 Laminin is a useful marker in the differentiation between actinic cheilitis and invasive squamous cell carcinoma in oral biopsies: new insights Maria Strataki, Greece K. Zacharouli, P. Doukas, D. Vageli, V. Tsangari, S. Doukas, G. Kabanos, V. Kakanis, R. Papamichali, S. Tzika, G. Koukoulis, M. Ioannou 017 Exploration of the transcriptomic landscape of HPV-positive and HPV-nega- tive oropharyngeal squamous cell carcinoma upon development of cisplatin resistance Hannah Crane, United Kingdom K. Hunter, S. El-Khamisy 018 “Molecular” resection margins in squamous cell carcinoma of the oral cavity – report of the first results of the multidisciplinary view Pavel Hurník, Czech Republic J. Stembirek, Z. Chyra, T. Sevcikova, J. Reznarova, B. Putnova, Z. Cermakova, T. Blazek, V. Zidlik, O. Res, J. Stransky, M. Buchtova 019 К eratinizing pleomorphic adenoma of parotid salivary glands: analysis of three cases from practice Mykhailo Myroshnychenko, Ukraine I. Brodetskyi, V. Malanchuk, O. Dyadyk, Y. Kalashnyk-Vakulenko 022 Frequency of SDHx variants in middle ear paragangliomas Vladislav Pavlov, Russia M. Fedorova, E. Pudova, D. Kalinin, A. Golovyuk, G. Krasnov, A. Kobelyatskaya, A. Snezhkina, A. Kudryavtseva 023 Sinonasal inverted papillomas with multiples recurrences: revision of our experience and HPV status Laura López Vilaró, Spain M. Campos Mármol, J. Gras Cabrerizo, M. Casasayas Plass, S. Bagué Rosell, J. Szafranska