I’m so sorry to hear about your Mum. My Dad has sarcoma in both of husband lungs and he’s never had radiotherapy - we’ve been told sarcomas are rare too and radiotherapy was not an option. We’ve been offered Trabectedin chemo which we know is not a cure but with the aim of stabilising the growth of tumours in the lungs. Can I ask which chemo your Mum had as I have read around the subject and there doesn’t be seem to be a lot of options in this area. We’ve been told without treatment Dad is looking at less than 12 months 😢. Take care xx