Fig. 9

Resected specimen of hepatic metastasis showing a macroscopic evaluation of the surgical margin. The parenchymal transections are marked with ink. In (a), the surgical margins are wide, the metastasis is far from the transection line (white arrows), corresponding to a R0 resection. In (b), the surgical transection clearly passes through the lateral border of the metastasis (black arrows), corresponding to a R1 resection