Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest were acquired . There is re-demonstration of a left - sided pacemaker with associated right atrial and right ventricular leads , not significantly changed in position . New patchy left mid to lower lung opacities likely project over both the left upper and lower lobes on the lateral radiograph . The right lung is clear . A rounded retrocardiac opacity is redemonstrated , most consistent with a small hiatal hernia . The heart size is normal . The mediastinal contours are normal . There are no pleural effusions . No pneumothorax is seen . Anterior wedging of a lower thoracic vertebral body is new compared to the prior study from ___ . Multilevel degenerative changes of the thoracic spine are noted .
    OUTPUT:
    
1 . Findings concerning for left mid to lower lung pneumonia , likely involving both portions of the upper and lower lobes . Recommend follow - up to resolution . 2 . Compression deformity involving a lower thoracic vertebral body , new compared to the prior study from ___ , but otherwise age indeterminate . 3 . Unchanged small hiatal hernia .