Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: At the right base , there is a linear patchy opacity most consistent with atelectasis . This is not significantly changed from the prior exam . There is no new consolidation , pulmonary edema , pleural effusion , or pneumothorax . The mediastinal contours are unremarkable . Mild cardiomegaly is unchanged . A rounded calcification is noted in the right upper quadrant subcutaneous tissue , possibly a calcified fibroma .
    OUTPUT:
    
Stable right basilar atelectasis . No evidence of pneumonia .