Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . Low lung volumes accentuate bronchovascular structures . Small nodular opacity in right upper lobe centrally likely corresponds to known dominant pulmonary nodule on recent chest CT of ___ . A perivascular nodule in the right mid lung region at the 6 posterior rib level is similar to the recent CT . Other nodules are likely below the resolution of conventional radiographs . No pleural effusion or acute skeletal findings . Within the imaged portion of the upper abdomen , prominence of the splenic contour corresponds to mild splenomegaly on recent CT abdomen .
    OUTPUT:
    
Known small pulmonary nodulew , which have been more fully characterized on recent CT chest ___ .