Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . The hilar and mediastinal contours are within normal limits . Central pulmonary vessels are engorged ; however , no overt edema is present . Bibasilar linear opacities reflect mild atelectasis secondary to decreased lung volumes . At least two wedge compression deformities are noted within the mid and lower thoracic spine , of unknown chronicity . Surgical clips overlie the breasts or upper abdomen . There is a chronic deformity of the right humeral head .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Wedge compression deformities of the mid and lower thoracic spine of unknown chronicity .