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Is Hepatic Resection for Large or Multifocal Intrahepatic Cholangiocarcinoma Justified? Results from a Multi-Institutional Collaboration.

[cholangiocarcinoma]

The role of surgical resection for patients with large or multifocal intrahepatic cholangiocarcinoma (ICC) remains unclear. This study evaluated the long-term outcome of patients who underwent hepatic resection for large (≥7 cm) or multifocal (≥2) ICC.Between 1990 and 2013, 557 patients who underwent liver resection for ICC were identified from a multi-institutional database. Clinicopathologic characteristics, operative details, and long-term survival data were evaluated.Of the 557 patients, 215 (38.6 %) had a small, solitary ICC (group A) and 342 (61.4 %) had a large or multifocal ICC (group B). The patients in group B underwent an extended hepatectomy more frequently (16.9 vs. 30.4 %; P < 0.001). At the final pathology exam, the patients in group B were more likely to show evidence of vascular invasion (22.5 vs. 38.5 %), direct invasion of contiguous organs (6.5 vs. 12.9 %), and nodal metastasis (13.3 vs. 21.0 %) (all P < 0.05). Interestingly, the incidences of postoperative complications (39.3 vs. 46.8 %) and hospital mortality (1.1 vs. 3.7 %) were similar between the two groups (both P > 0.05). The group A patients had better rates for 5-year overall survival (OS) (30.5 vs. 18.7 %; P < 0.05) and disease-free survival (DFS) (22.6 vs. 8.2 %; P < 0.05) than the group B patients. For the patients in group B, the factors associated with a worse OS included more than three tumor nodules [hazard ratio (HR), 1.56], nodal metastasis (HR, 1.47), and poor differentiation (HR, 1.48).Liver resection can be performed safely for patients with large or multifocal ICC. The long-term outcome for these patients can be stratified on the basis of a prognostic score that includes tumor number, nodal metastasis, and poor differentiation.

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  • cholangiocarcinoma

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