Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph is obtained . There is increasing opacity at the left lung base concerning for effusion and consolidation . Right lung appears clear . Overall , low lung volumes limit evaluation . No pneumothorax . Heart size can not be reliably assessed . The mediastinal contour is unremarkable . Bony structures appear grossly stable in this patient with known diffuse metastatic disease .
    OUTPUT:
    
Increasing opacity at the left lung base concerning for pneumonia and effusion .