[1] Thraki Med Ctr, Dept Surg, Thessaloniki, Greece
[2] Gen Hosp Chania, Dept Cytol, Thessaloniki, Greece
[3] Democritus Univ Thrace, Dept Radiol, Thessaloniki, Greece
[4] Democritus Univ Thrace, Dept Histol Embryol, Thessaloniki, Greece
[5] Histodiagnostiki Pathol Ctr, Thessaloniki, Greece