Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the right atrium . Diffuse parenchymal opacities have progressed when compared to the previous radiograph . No definite pleural effusion or pneumothorax is seen . Heart size and hilar contours are difficult to assess given the extensive parenchymal opacities . Mediastinal contour appears unchanged . Known metastatic lesion within the T11 vertebra is better demonstrated on the previous CT .
    OUTPUT:
    
Worsening opacities diffusely within the lungs . While a component of this is due to metastatic disease , given the rapid interval progression , superimposed infection is suspected , particularly within the left lung base .