Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right PICC has been removed . The lungs are well expanded . There is increased opacity laterally in the left mid lung , which likely reflects soft tissue artifact secondary to rotation . However , more medially at the left infrahilar region there are ill - defined opacities that appear increased from prior study and are concerning for aspiration . No focal consolidation to suggest lobar pneumonia . There is no pleural effusion or pneumothorax . Hilar and cardiomediastinal contours are unchanged , and there is no pulmonary vascular congestion or edema . There is no free air in the upper abdomen , and there is no acute osseous abnormality identified . Degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Ill - defined left infrahilar opacities could relate to aspiration .