Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left basilar atelectasis is seen . A subtle nodular opacity is seen at the right lung base . The lungs are otherwise clear of focal consolidation , pleural fusion pneumothorax . There is no overt pulmonary edema . The heart size is normal , and the mediastinal contours are normal . No acute osseous abnormality is seen .
    OUTPUT:
    
Subtle nodular opacity seen at the right lung base can be further evaluated with a non-emergent chest CT .