Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Mild cardiomegaly is noted . Coarsened lung markings may reflect interstitial lung disease . No large effusion or pneumothorax is seen . No convincing signs of pneumonia . Patient rotation limits assessment . Allowing for this , the mediastinal contour is likely within normal limits . The bony structures are demineralized though appear intact .
    OUTPUT:
    
Mild cardiomegaly , probable chronic lung disease . No overt signs of pneumonia or edema .