title: Radiation pneumonitis producing respiratory failure.
mesh_terms: D001784:Blood Gas Analysis; D002283:Carcinoma, Bronchogenic / Q000532:radiotherapy; D006801:Humans; D008175:Lung Neoplasms / Q000532:radiotherapy; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000150:complications* / Q000209:etiology; D011878:Radiotherapy / Q000009:adverse effects*; D012129:Respiratory Function Tests; D012131:Respiratory Insufficiency / Q000209:etiology*