Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits , allowing for rotation . A rounded density projects over the left upper lobe and air is thickening of the left apical pleural margin , which could be due to rotation . The lungs are otherwise clear . There is no pneumothorax , fracture or dislocation . Limited assessment of the abdomen is unremarkable .
    OUTPUT:
    
Repeat frontal and lordotic views are recommended for further assessment of a rounded density projecting over the left upper lobe and possible thickening of the left apical pleura .