Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal , and hilar contours are stable . There is no pleural effusion or pneumothorax . Faintly visualized nodular focus in the left mid lung , probably within the lingula , measuring about 5 mm in diameter may correspond to a known nodule on a remote prior CT from ___ . There is potentially a second nodule versus confluence of bronchovascular shadows projecting more inferiorly in the left lower lung . Otherwise , the lungs remain clear .
    OUTPUT:
    
No definite acute process . One or perhaps two nodular foci , small in size , within the left mid-to - lower lung , not specific and possibly correlating with previously seen lung nodules . It is difficult to confirm whether these may be different and accordingly new nodules than seen previously , however . Consideration of chest CT is suggested , particularly if symptoms were to persist , and radiographic surveillance may otherwise be appropriate within three months .