Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided central line is present , tip over mid SVC . The heart is not enlarged . The aorta is mildly tortuous , with slight prominence of the ascending aorta . No CHF , focal infiltrate or effusion is identified . Curvilinear density at the left lung base laterally is seen . This is similar to findings on a chest x-ray from ___ and therefore likely represents atelectasis and / or scarring . Incidental note is made of an orthopedic anchor in the left humeral head .
    OUTPUT:
    
Probable atelectasis / scarring at the left base . Doubt penumonia . Otherwise , no evidence of focal infiltrate . If symptoms worsen , consider repeat chest x-ray to assess for any evolution at the left lung base .