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Assoc. Prof.Cengiz Dibekoğlu, MD

General Surgeon

Colon Cancer

Lung Metastases from Colorectal Cancer

Resectability, MDT review, and how this differs from liver metastases

After the liver, the lungs are the next common site of colorectal spread. Pulmonary deposits do not automatically mean operation. Distribution, primary tumor control, liver involvement, extrahepatic disease, biology, and lung function are reviewed together at the tumor board.

Selected patients may be offered pulmonary metastasectomy or ablation; many remain on systemic therapy and surveillance. Lesion count alone does not define resectability.

Colorectal lung metastases — pathway from colon to lungs · educational illustration

How this differs from liver metastases

Liver spread often follows portal drainage; lung metastases frequently reflect hematogenous dissemination. Whether the primary is controlled, whether liver disease coexists, and whether other extrahepatic sites are involved all shape pulmonary surgery decisions.

Assessing resectability

CT / PET-CT define number, location, and technical feasibility while preserving adequate lung function. Thoracic surgery, medical oncology, radiology, and radiation oncology when needed share the decision.

  • Primary / liver disease control
  • Pulmonary function testing
  • Distribution and technical resectability
  • Biology and systemic response

Surgery and local therapy

Wedge resection, segmentectomy, or lobectomy may suit selected patients. Recurrent or multifocal disease may favor ablation, stereotactic body radiotherapy (SBRT), or systemic therapy instead. Diffuse bilateral disease rarely leads to surgery.

Systemic therapy and surveillance

When disease is not resectable, chemotherapy ± targeted / immunotherapy is central. As with liver disease, conversion strategies after response may be revisited in selected patients. Surgery is not appropriate for everyone.

Common questions

  • Can lung metastases be cured with surgery?
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    Long-term control is possible in selected patients, but not guaranteed. Surveillance and systemic plans continue.

  • What if both liver and lung are involved?
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    This requires complex MDT sequencing (liver-first, lung-first, or systemic-first) individualized to the case.

  • How many lung nodules rule out surgery?
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    There is no fixed number — distribution, resectability, and biology matter more.

Evidence

Scientific sources

Show sources · 3

Core oncology sources for resectability and MDT review in colorectal lung metastases. Surgery is not appropriate for everyone.

  1. 1. Metastatic colorectal cancer: ESMO Clinical Practice Guideline for diagnosis, treatment and follow-upEuropean Society for Medical Oncology (ESMO) · 2023 · DOI: 10.1016/j.annonc.2022.10.003Open source →
  2. 2. NCCN Clinical Practice Guidelines in Oncology: Colon CancerNational Comprehensive Cancer Network (NCCN) · Güncel sürüm / Current versionOpen source →
  3. 3. ASCRS clinical practice guidelines libraryAmerican Society of Colon & Rectal Surgeons (ASCRS) · Kılavuz kütüphanesi / Guideline libraryOpen source →

Last reviewed: 21 August 2026. Links go to publisher pages.

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