Fig. 2

a Tumor regression induced by PIPAC treatments. Bars indicate tumor regression in individual patients undergoing PIPAC cycles 1, 2, 3, or 4 and more (each column across the panels represents an individual patient). Inset with dotted line: linear regression (p < 0.001, regression coefficient 0.416). Tumor regression grade 0 to 3, based on Dworak et al.: 0, no regression; 1, some regression; 2, major regression; 3, complete regression. b Spaghetti plot of peritoneal carcinomatosis index (PCI) scores. The PCI score at baseline (PIPAC 1) was used as reference and absolute increase/decrease of PCI score during PIPAC cycles is shown. Each line represents a patient for whom at least three data points were available. c Kaplan-Meier survival analysis. In all panels, data from patients with primary breast cancer are shown in blue and those from patients with primary endometrial cancer are shown in green