Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval enlargement of left superior mediastinal mass displacing the trachea to the right with associated coronal tracheal narrowing to 10 mm in diameter at the level of the thoracic inlet . Cardiac silhouette is mildly enlarged and accompanied by increased caliber of the pulmonary vasculature , as well as peribronchial cuffing and scattered peripheral septal lines . Additionally , multifocal patchy opacities are present in the right middle lobe and both lung bases . Small pleural effusions are also evident . On the lateral view , the large mediastinal mass results in posterior displacement of the trachea .
    OUTPUT:
    
1 . Left superior mediastinal mass consistent with thyroid origin , resulting in rightward and posterior tracheal displacement and luminal narrowing . At the time of this report , a CT has been obtained to more fully characterize this finding and other cardiothoracic abnormalities . 2 . Findings suggestive of increased volume status . Asymmetrically distributed right mid and bilateral lower lung opacities could reflect asymmetrical edema , multifocal aspiration or infectious pneumonia . 3 . Small bilateral pleural effusions .