Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single semi-erect frontal view of the chest demonstrates patient to be moderately rotated to the left , distorting cardiomediastinal silhouette . This likely accounts for apparent mediastinal widening , which is accentuated by semisupine position and AP technique . Lung volumes are low , accentuating bronchovascular crowding . Allowing for such , there is mild perivascular congestion . Streaky bibasilar opacity could represent aspiration , evolving infection , or a component of atelectasis . There is no large effusion or pneumothorax . A tracheostomy is in place . Mild diffuse osseous demineralization is present . Moderate right greater than left glenohumeral osteoarthritis is present .
    OUTPUT:
    
Limited exam , demonstrating mild perihilar vascular congestion and bibasilar streaky opacities which could represent either aspiration or resolving infection .