Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal and hilar contours are unremarkable . Nodular and linear opacities are demonstrated within the left lung apex , which could reflect scarring from prior inflammation or infection . Additionally , an ovoid nodular opacity measuring 13 mm is noted in the lateral aspect of the left mid lung field . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities . The pulmonary vascularity is not engorged .
    OUTPUT:
    
Linear and nodular opacities within the left lung apex which may reflect scarring from prior inflammation or infection . ___- mm subtle ovoid nodular opacity in the lateral aspect of the left mid lung field is also noted . Further assessment with a chest CT is suggested if there are no prior studies available for comparison .