Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Growth and poor definition of the left upper lobe lung nodule since ___ is attributable to biopsy related atelectasis or local bleeding . There is no pneumothorax or hemothorax . The heart is top normal size . Mediastinum is widened by fat deposition primarily .
    OUTPUT:
    
AP chest read in conjunction with chest CT on ___ , most recent prior chest radiographic study .