Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate unchanged pulmonary vascular redistribution . The cardiac silhouette remains mildly enlarged . The mediastinal contours are notable only for calcification of the aortic knob . There is no pleural effusion or pneumothorax . Leftward tracheal deviation suggests goiter .
    OUTPUT:
    
1 . Mild cardiomegaly and pulmonary vascular redistribution , unchanged from ___ . 2 . Tracheal deviation suggesting thyroid gland enlargement .