08-14-2026 Don’t Let Multiple Lung Lesions Lead You Down the Wrong Path! {Lung Primary}
| Feature | Synchronous Tumor | Intrapulmonary Metastasis |
| Multiple Tumors Present | Yes | Yes |
| T Category & Use (m) Suffix | Single Primary: Assign the T category based on the tumor that would receive the highest T Category-Use the (m) suffix
Multiple Primary: Stage each separately- Do not use the (m) suffix
| Single Primary: Assign the T Category based on where the tumors are located (same lobe, different lobes, opposite lung) Do not use the (m) suffix |
| SSDI Separate Tumor Nodules | No | Yes |
