When to use: Used to stage non-small cell lung cancer (NSCLC) after pathological or clinical assessment of primary tumour size, nodal involvement, and metastatic status. Staging guides treatment decisions and provides prognostic information.
Calculator
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Formula
Stage I: T1-2 N0 M0
Stage II: T1-2 N1 M0 or T3 N0 M0
Stage III: T3-4 N1 M0, or any T N2-3 M0
Stage IV: any T any N M1
Key Points for NEET PG
NSCLC (80–85%) vs SCLC (15–20%) — staging system differs; SCLC uses limited/extensive stage
Preparing for NEET PG? Recollia's AI Tutor explains the clinical reasoning behind every formula — not just the answer, but the why that examiners test.
