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Copyright ©The Author(s) 2022.
World J Gastrointest Oncol. Apr 15, 2022; 14(4): 820-832
Published online Apr 15, 2022. doi: 10.4251/wjgo.v14.i4.820
Table 1 Main prognostic factors in patients with lung metastases from colorectal cancer
Prognostic factorOverall survival
Disease-free survival
Favorable
Negative
Favorable
Negative
Number of metastases[23,68,71,76-78,86-90]SingleMultiple
Preoperative CEA level[61,69,86,87]< 4-5 ng/mL> 4-5 ng/mL
pStage of CRC[71,79,86,87]Local disease, low Tstage, absence of nodal involvementAdvanced p and T stage, nodal Involvement
Lung metastases appearance[23,61,69-71,87,91]Metachronous lung metastasesBilateral lung synchronous metastasis, past history of extra thoracic metastasisLong DFI between CRC and first detection of pulmonary metastasisSynchronous pulmonary metastasis and CRC
Pulmonary metastasis derivation from primary site of CRC[64]Right colonLeft colon or rectumNot investigatedNot investigated
Lung metastasis size (cm)[61,69,78,79]< 2 cm> 2 cmNot investigatedNot investigated
Mediastinal lymph node metastasis[23,69,89]NegativePositiveNot investigatedNot investigated
Metabolic characteristics[61,79]Lung metastasis PET negativeLung metastasis PET positive Lung metastasis PET negativeLung metastasis PET positive
Distance between lesion and resection margin (cm)[79]> 2 cm< 2 cmNot investigatedNot Investigated