Classic Radiation Oncology emergencies are often thought to include spinal cord compression, intractable pain, hemorrhage, brain metastases with neurological symptoms and superior vena cava syndrome.

Are there other clinical scenarios (e.g., malignant pulmonary artery compression, mainstem endobronchial occlusion, large pelvic mass causing renal failure) that you think warrant urgent radiation treatment are should be similarly designated as secondary "emergencies" under given circumstances? Why or why not?