Peritoneal regression grading score (PRGS) in peritoneal metastasis: how many biopsies should be examined?
Wiebke SolassChristoph MeisnerFlorian KurtzGiorgi NadiradzeMarc A ReymondHans Bösmüller
Published in: Pleura and peritoneum (2022)
A minimum of three biopsies is needed to diagnose PM progression with an accuracy superior to 80%. Missing biopsies often result in a false diagnosis of tumor progression.