Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable supine view of the chest . Lung volumes are low limiting assessment . Additionally , patient is slightly rotated to the left . Allowing for technical limitations , no definite consolidation , large effusion or supine evidence for pneumothorax . The heart size is grossly within normal limits allowing for rotation . Mediastinum is difficult to assess . Bony structures are intact . Partially imaged chronic deformity of the right proximal humeral shaft noted . No acute fracture identified .
    OUTPUT:
    
Limited , negative .