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HomeSmall Cell Lung Cancer Staging (VALSG)
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Small Cell Lung Cancer Staging (VALSG)

Clinical Context & Background

The VALSG system is the standard clinical staging method for Small Cell Lung Cancer (SCLC). It stratifies patients into "Limited" or "Extensive" disease, which determines whether the patient is a candidate for curative-intent concurrent chemoradiation.
Primary Source EvidenceMicke P, et al. Staging of small cell lung cancer: Veterans Administration Lung Study Group versus International Association for the Study of Lung Cancer--what limits limited disease? Lung Cancer. 2002;37(3):271-276.
Formula Logic
Limited: Confined to one hemithorax + supraclavicular nodes. Extensive: Beyond one hemithorax.

Reference Data

StageDefinitionTreatment Intent
Limited Stage (LS)Confined to one hemithorax, mediastinum, and supraclavicular nodes; encompassable in one radiation portal.Curative (Chemo + Radiation)
Extensive Stage (ES)Spread beyond supraclavicular areas, or malignant pleural effusion.Palliative (Chemo / Immunotherapy)

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