Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart and mediastinal contours are within normal limits . The lungs show no lobar consolidation but do show a diffuse nodular pattern that is new from prior exam . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Diffuse nodular pattern throughout the lung parenchyma compatible with an acute infectious or inflammatory process and potentially malignancy ; entities such as miliary TB can not be excluded .