Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP supine view of the chest provided . A Port - A - Cath resides over the right axilla with catheter tip at the level of the low SVC . Fracture to the proximal shaft of the right humerus is noted , appearing acute . There is subtle cortical irregularity along the right seventh lateral rib arch which could indicate an acute rib fracture . Lung volumes are low . No focal consolidation or supine evidence for effusion or pneumothorax . The heart and mediastinal contour appears stable .
    OUTPUT:
    
Fracture of the right proximal humeral shaft . Possible fracture involving the right seventh lateral rib arch .