Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Evaluation of the later radiograph is severely limited by patient 's arm position . Within this limitation , the cardiomediastinal and hilar contours are unremarkable . Lungs are clear . No pleural effusion or pneumothorax identified . Substantially assymetrically increased soft tissue opacification on the left with suggestion of subcutaneous gas and possible air fluid level on the lateral view .
    OUTPUT:
    
No acute intrathoracic process . Assymetry of breast soft tissue with possible subcutaneous gas and air fluid level noted on lateral view may relate to recent surgery . Please correlate with patient symptom and surgical history .