1 Department of General, Endocrinological Surgery and Gastroenterological Oncology, Poznan University of Medical Sciences, Poznań, Poland
2 Department of Radiology, Poznan University of Medical Sciences, Poznań, Poland
3 Department of Clinical Pathomorphology, Poznan University of Medical Sciences, Poznań, Poland
4 Department of General, Endocrinological Surgery and Gastroenterological Oncology, Poznan University of Medical Sciences, Poznań, Poland. lkrokowicz@gmail.com