Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette is top normal in size . There is a tortuous aortic knob with calcification . In the lateral view , there is a lenticular opacity in the posterior lung bases , likely the left lung base . There is no pneumothorax or pulmonary edema . There is marked dextroconvex thoracolumbar scoliosis . There is eventration of the right hemidiaphragm . A severe compression deformity is noted in the mid thoracic spine , of uncertain age but likely chronic . There is no gross malalignment . The osseous structures are diffusely osteoporotic . There is significant shortening of the acromiohumeral distance bilaterally , representing rotator cuff injuries .
    OUTPUT:
    
1 . A small opacity in the posterior lung base ( likely the left lung base ) , non-specific but could represent a small loculated pleural effusion . Differential diagnosis includes focal consolidation , atelectasis , but can not exclude neoplastic process . Recommend follow - up chest radiograph to ensure clearance or otherwise chest CT . 2 . Diffuse osteopenia with a severe mid-thoracic compression deformity , likely chronic .