1. Department of Oncological Surgery, Gdynia Centre of Oncology, Pomeranian Hospitals, Gdynia, Pomeranian Voivodship 81‑519, Poland
2. Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Pomeranian Voivodship 80‑210, Poland
3. Department of Pathomorphology, Gdynia Centre of Oncology, Pomeranian Hospitals, Gdynia, Pomeranian Voivodship 81‑519, Poland
4. Department of Oncological Surgery, Medical University of Gdańsk, Gdańsk, Pomeranian Voivodship 80‑210, Poland