1 1. MUCINOUS CYSTADENOMA OF THE GALLBLADDER Gorana Aralica 1,2 , Arijana Pačić 1 , Iva Pavelić 1 , Božo Lončar 3 1 Department of Pathology and Cytology Dubrava University Hospital, Zagreb, Croatia, 2 Department of Pathology, School of Medicine, University of Zagreb, Zagreb, Croatia, 3 Department of Abdominal Surgery Dubrava University Hospital, Zagreb, Croatia 2. IMPAIRED DIRECT CELL-CELL COMMUNICATION VIA CONNEXIN 43 GAP JUNCTIONS IN GIANT CELL TUMOR OF BONE Peter Balla, Mate E. Maros, Anett Hudak, Tamas Vancsik, Tibor Krenacs 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary 3. P53, MAPK, TOPO II ALPHA AND KI67 IMMUNOHISTOCHEMICAL EXPRESSION AND KRAS/BRAF MUTATION IN OVARIAN SEROUS CARCINOMAS Joško Bezić, Dinka Šundov, Branka Petrić Miše, Ivana Mrklić, Renata Beljan Perak, Marina Piljić Burazer, Dijana Gugić, Snježana Tomić Institute of Pathology, Forensic Medicine and Cytology, Clinical Hospital Center, Split, Croatia 4. OSTEONEVUS OF NANTA REVISITED Joško Bezić, Ivana Karaman, Sandra Zekić Tomaš, Dinka Šundov Institute of Pathology, Forensic Medicine and Cytology, Clinical Hospital Center, Split, Croatia 5. HPV-POSITIVE SQUAMOUS CELL CARCINOMA OF THE NASAL CAVITY Ana Bravc 1 , Nina Zidar 2 , Jure Urbančič 3 1 Department of Pathology, General Hospital Slovenj Gradec, Slovenj Gradec, Slovenia, 2 Institute of Pathology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia, 3 Department of Otorhinolaryngology and Cervicofacial Surgery, University Medical Centre Ljubljana, Ljubljana, Slovenia 6. LARGE-SECTIONS IN BREAST PATHOLOGY: PRELIMINARY REPORT OF A SINGLE INSTITUTION EXPERIENCE Iva Brcic 1 , D Tentor 1 , P Podolski 2 , D Mijatovic 3 , M Prutki 4 , D Vrbanec 2 , J Jakic-Razumovic 1 1 Clinical Department of Pathology and Cytology, 2 Department of Oncology, 3 Department of Surgery, 4 Department of Radiology, University Hospital Centre Zagreb, Zagreb, Croatia