We focused on patients exhibiting 1 lung metastasis who underwent an AR (segmentectomy) or an NAR (wedge) and for whom the KRAS mutational status was known.
Left-sided tumors with wild-type KRAS had greater proportion of liver metastasis (78.6% versus 53.5%, P = 0.00), whereas those with mutant KRAS had greater proportion of lung metastasis (23.3% versus 8.7%, P = 0.02).