Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Within the limitations of technique , there is no definite abnormality of vasculature , but there is patchy opacity in the left mid - to - lower lung , possibly pneumonia in the appropriate clinical setting . The azygos vein appears mildly prominent . There is no pleural effusion or pneumothorax . The bones are probably demineralized . There is a slight S - shaped thoracic spinal curvature .
    OUTPUT:
    
No definite evidence of pulmonary edema . Mild prominence of the azygos vein could be a reflection of increased volume status , however . Patchy left basilar opacity , for which developing pneumonia could be considered .