135 Background: Palliative radiation therapy(PRT)is often employed in patients with advanced cancers requiring urgent consultation given the rapidity of presentation.We report on characteristics of urgent palliative oncologic issues encountered by radiation oncologists(RO). Methods: We prospectively evaluated patterns of presentation in162 consecutive consultations for urgent PRT at 3 centers from 5/19/14 to 9/26/14.Survey of palliative care issues was completed by physicians/nurse practitioners including assessment of reasons for urgent radiation oncology consultation,disease presentation characteristics and site of RT delivery.Response rate was 86% with 140 of 162 responses received. Results: Median age of patients was 63 years(29-89)with 39% > 65, 41% from 50-65 and 20% < 50 years;56% were males and 44% females. Most were married(62%)and 30% non-Caucasians.48% had ECOG PS 0-1,whereas it was 2, 3 and 4 in 24%,9% and 3%.Primary cancer diagnoses were lung (28%),breast(13%),prostate(10%),melanoma(10%),sarcoma(7%) and other diagnoses in 32%.Pain was predominant reason for consult(57%)followed by brain metastases(29%),spinal cord/cauda compression (13%),dyspnea (10%),bleeding (8%),bone fracture(4%)and dysphagia(2%).Clinicians managed pain (69%),neurologic symptoms(51%),fatigue (49%),intestinal(21%),respiratory (19%) symptoms,bleeding (14%),insomnia (13%),nausea/vomiting(12%)and dysphagia(6%).Patients presented at all stages 79% at the time of their diagnosis of metastatic cancer,63% with an established ( > 1 month) metastatic cancer diagnosis and continuing to further cancer therapies and 17% proceeding to hospice care without further anti-cancer therapy after PRT. Conclusions: Radiation oncologists care for patients across time course of metastatic cancer diagnosis managing variety of urgent oncologic issues,most commonly metastases causing pain followed by brain metastases and cord compression.They also manage cancer-related symptoms,mostly pain,neurological symptoms and fatigue.These findings point to need for palliative care to be well integrated into radiation oncology practice including education and systems of care.