Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . Projecting over the right lung base , there is a well - defined rounded 4 mm opacity which is most likely a vessel on , less likely calcified granuloma . The cardiac and mediastinal silhouettes are unremarkable . Thoracolumbar scoliosis is incidentally noted .
    OUTPUT:
    
No acute cardiopulmonary process .