Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The previously questioned air-fluid level adjacent to the trachea is not present on this view , and may have been artifactual . Posterior indentation of the tracheal air column could be due to thyroid enlargement . Moderate cardiomegaly is stable . A right - sided PICC line ends in the upper SVC is noted . The lungs are clear , and there is no pleural effusion or pneumothorax . The vascular pattern suggests emphysema . Dystrophic calcifications in the left axilla are chronic , probably nodal .
    OUTPUT:
    
1 . Previously seen paratracheal air - fluid collection not seen on this study , probably artifactual . Thyroid enlargement probably indenting the posterior trachea . 2 . Moderate cardiomegaly , unchanged .