Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Irregular spiculated mass within the left mid lung is similar to prior examination and corresponds with known non-small cell lung carcinoma . Fiducial seeds are seen within the mass . No other mass lesion or suspicious pulmonary nodule is identified . There is no pleural effusion . Mediastinal and hilar contours are within normal limits . Moderate cardiomegaly is unchanged . There is no pneumothorax .
    OUTPUT:
    
Stable appearance of known left non-small cell lung carcinoma . No superimposed acute process .