Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . Projecting over the lateral right lung is a vague nodular focus , not present on the prior examinations . There is also a potential new lung nodule projecting over the left upper lung although the latter may be partly artifactual . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
At least one new suspicious nodular focus worrisome for metastatic disease ; however , atypical infectious processes could also be considered , particularly in the setting of immunosuppression . CT may be helpful if needed clinically .