Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a 1 .2 cm rounded opacity just inferior to the right scapular border . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . A right - sided Port - A - Cath terminates in the mid SVC .
    OUTPUT:
    
A 1 .2 cm rounded opacity just inferior to the right scapular border is of uncertain etiology , and may be external to the patient , for which shallow oblique radiographs or CT chest is recommended to evaluate for pulmonary nodule .