Prognostic impact of positive peritoneal cytology (POPEC) in gastric cancer: Multi-centre European retrospective cohort study

Owen, R.; Chidambaram, S.; Shamiyah, K.; Elliott, J. A.; Hedberg, J.; Kamarajah, S.; Klevebro, F.; Schneider, M. A.; Fourie, L.; Gutschow, C.; Nilsson, M.; Griffiths, E.; Rosati, R.; Sultan, J.; Pera, M.; Grimminger, P.; Piessen, G.; Eveno, C.; Ruurda, J.; Van Hillegersberg, R.; Reynolds, J. V.; Van Berge Henegouwen, M.; Gisbertz, S.; J. B. Y., So; Maynard, N.; Markar, S.; Calef, R.

doi:10.1016/j.soi.2025.100145

This study showed the technique of performing peritoneal washings influenced cytology yield, however positive peritoneal cytology was not associated with decreased survival. Therefore, positive peritoneal cytology should not be considered an absolute contradiction to curatively intended gastrectomy.

Prognostic impact of positive peritoneal cytology (POPEC) in gastric cancer: Multi-centre European retrospective cohort study / Owen, R.; Chidambaram, S.; Shamiyah, K.; Elliott, J. A.; Hedberg, J.; Kamarajah, S.; Klevebro, F.; Schneider, M. A.; Fourie, L.; Gutschow, C.; Nilsson, M.; Griffiths, E.; Rosati, R.; Sultan, J.; Pera, M.; Grimminger, P.; Piessen, G.; Eveno, C.; Ruurda, J.; Van Hillegersberg, R.; Reynolds, J. V.; Van Berge Henegouwen, M.; Gisbertz, S.; So, J. B. Y.; Maynard, N.; Markar, S.; Calef, R.. - In: SURGICAL ONCOLOGY INSIGHT. - ISSN 2950-2470. - 2:3(2025). [10.1016/j.soi.2025.100145]