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Surgical strategies for colorectal liver metastases. (a) Parenchymal-sparing hepatectomy. (b) One-stage hepatectomy with or without PVE. (c) Two-stage hepatectomy with PVE. (d) Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS). (e) Orthotopic liver transplantation (OLT). Dashed lines illustrate the future liver remnant prior to augmentation (i.e., PVE; portal vein ligation during ALPPS).
