This study utilizes a new method to explore compare the overall survival (OS) and cancer-specific survival (CSS) in patients aged 18-45 years with stage I-II HCC who underwent different types of surgery. The SEER database, which is one of the most comprehensive and authoritative databases concerning cancer, was used to estimate the survival benefit of patients who underwent local tumor destruction (LTD), wedge or segmental resection (WSR), lobectomy resection (LR), liver transplantation (LT), or non-surgery. This study discovered surgery offered a survival benefit compared with non-surgery for young patients with stage I-II HCC. Furtherly, LT is associated with superior survival than WSR, LR and LTD in those patients. Our results facilitate the selection of surgical strategies.

The SEER data contain no identifiers and are publicly available for studies of cancer-based epidemiology and survival analysis. Therefore, the current study was deemed to be exempt from Institutional Review Board approval and the need for informed consent was waived. The submitted magazine requires registration on the website, so this operation is needed.

Inclusion Criteria:

1. Patients were diagnosed with colorectal cancer only;
2. Patients with simultaneous metastasis of liver and lung cancer cells;
3. Patients without metastasis resection;
4. whether they underwent palliative primary tumor resection was known;
5. Their cause of death was known;
6. Their survival time were known and greater than 0 month;
7. Patients were diagnosed with microscopic confirmation.

Exclusion Criteria:

• No

Patients aged 18-45, regardless of race。