Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In the right upper lobe there is an irregularly shaped pulmonary nodule measuring 1 .5 x 1 .1 cm , with subtle high - density regions , and centrally low density . Hyperlucency at the left lung apex could represent a bulla or severe emphysematous change . Diffuse interstitial opacities are likely in keeping with underlying parenchymal disease . No focal consolidation concerning for pneumonia .
    OUTPUT:
    
1 .5 x 1 .1 cm partially calcified right upper lobe pulmonary nodule may represent sequela of prior infection such as tuberculosis . Neoplastic nodule is less likely but still a possibility . Cross sectional imaging is recommended .