Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is a nodular opacity projecting posterior to the medial right clavicle projecting over the right upper lung . Basilar atelectasis is seen . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Opacity projecting over the medial right rib is concerning for right upper lobe lesion . Recommend non-urgent chest CT for further evaluation .