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Multiple lung cancers prognosis: what about histology?
Marc Riquet1, Aurélie Cazes, Karel Pfeuty
1Department of General Thoracic Surgery, Georges Pompidou European Hospital and Paris Descartes University, Paris, France. marc.riquet@egp.aphp.fr
The Annals of Thoracic Surgery
|August 30, 2008
Summary
For multiple lung cancers (MLC) with similar histology, surgery is safe and recommended. Histologic similarity does not impact survival rates, and metastasis diagnosis should not prevent surgical intervention.
Area of Science:
- Oncology
- Thoracic Surgery
- Cancer Staging
Background:
- Multiple lung cancers (MLC) present diagnostic challenges, especially when histologically similar.
- Distinguishing between primary tumors and metastases impacts cancer staging and treatment strategies.
Purpose of the Study:
- To evaluate the impact of similar histologic classification in multiple lung cancers (MLC) on patient outcomes.
- To determine if surgical management should be altered based on histologic similarity in MLC.
Main Methods:
- Retrospective review of 234 patients with synchronous or metachronous non-small cell MLC undergoing surgical resection.
- Comparison of outcomes between patients with similar versus different histologic classifications of MLC.
- Analysis of factors including chronology, resection type, staging, and overall survival.
Main Results:
- Histologic classification was similar in 57.9% of MLC cases.
- 5-year survival rates were not significantly correlated with similar or different histologic classifications.
- Synchronous MLCs in the same lobe showed higher survival rates than those in different lobes (p=0.022).
Conclusions:
- Surgery is safe and beneficial for patients with MLC, irrespective of histologic similarity.
- While metastasis diagnosis is crucial for staging, it should not contraindicate surgical treatment for MLC.
- Further research into biologic markers for metastasis in MLC is warranted.