Fig. 4

Postoperative data. (A) CtDNA detection and levels and recurrence. (B) Ca 19–9 levels and recurrence. (C) Examples of ctDNA detection and recurrence. BS: Before surgery, BEFORE-P: Peripheral blood before tissue mobilization, AFTER-P: Peripheral blood after tissue mobilization, BEFORE-PV: Portal blood before tissue mobilization, AFTER-PV: Portal blood after tissue mobilization, POD: Postoperative day, POM: Postoperative month. Arrows indicate clinical recurrence.