Eligible patients (see below) will receive radical radiotherapy to the primary tumor and the initially involved mediastinal lymph nodes to an MLD (Mean Lung Dose) of 20 +/- 1Gy, irrespective of lung function and/or to all metastatic sites to a minimal biological equivalent of 60Gy in 30 daily fractions. This may be delivered with hypofractionated stereotactic techniques or with other more protracted fractionation regimen.
Both the primary tumor, the regional N1 lymph nodes and the oligo-metastatic site(s) may be treated with surgery, as long as an R0 resection is deemed possible. Systemic treatment is not required, but should be given according to the local extend of the tumor.
Local radiotherapy will be delivered according to the protocol of MAASTRO clinic for that anatomical site.
Other dose-constraints: spinal cord max: 54Gy, brachial plexus (Dmax): 66Gy The radiation doses will be specified according to ICRU 50. Lung density corrections will be applied, as well as all standard QA procedures. Technical requirements are the same as in standard practice at MAASTRO clinic.