Based on provided CT-scan it can be staged as T2aN3M0, stage IIIa. However CT had its limitations and PET-CT can be more accurate especially for evaluation for LN-status and bone metastases. There are two main problems with this case:

1. The indication for surgery in the elderly depends on many factors (not only clinical stage of the tumor) and you can use as a good reference the following book:

http://www.intechopen.com/books/topics-in-cancer-survivorship/approach-to-lung-cancer-in-the-elderly-population

2. I would like to suggest you to not post any information related to identifiable patient (name, age, hospital, date and time are identifiable on provided CT), as this frequently has unwanted medico-legal consequences.