Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left upper extremity PICC line is seen with its tip terminating in the low SVC . Bilateral pulmonary opacities , many containing calcification , are overall unchanged in this patient with known Cowdens disease , these represent numerous pulmonary hamartomas . Given the extensive background opacity , difficult to exclude a superimposed subtle pneumonia though none is clearly identified . No large effusion or pneumothorax . Heart size appears grossly stable . Mediastinal contour is similarly unchanged . No acute bony abnormality . No free air below the right hemidiaphragm .
    OUTPUT:
    
PICC line appears in appropriate position . Extensive pulmonary opacities consistent with known Cowdens disease representing pulmonary hamartomas . No definite signs of superimposed pneumonia .