Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patchy areas of opacity projecting over the left mid to lower hemithorax are concerning for infection and / or malignant involvement . The osseous structures are heterogeneous , including areas of bilateral ribs ( is for example the anterior right 8th rib . The anterior ribs on the lateral seen . Increased sclerosis projecting over a lower thoracic vertebral body also raises concern for metastatic involvement . No large pleural effusion is seen although trace pleural effusion be difficult to exclude . There is no pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . No overt pulmonary edema is seen .
    OUTPUT:
    
Osseous metastatic disease . Patchy opacities projecting over the left mid to lower hemi thorax , while in part may relate to osseous metastatic disease , raise concern for infection and / or pulmonary metastatic disease .