How would you manage a patient with radiation pneumonitis who remains symptomatic on steroids?  

Engage your Pulmonology colleagues to assist in these difficult cases. Important to rule out other causes of persistent symptoms including infectious processes. Rebronch can be helpful for infectious work up and/or determining the nature of the inflammatory process that is ongoing (for example, the ...

I wouldn't. I'd refer them to a pulmonary and critical care specialist ASAP and follow closely.