Bony exostosis/osteochondroma is seen along the outer aspect of the anterior end of right 5th rib which is stable when compared with the previous scan; however, an interval increase is seen in the associated overlying soft tissue component (which is likely a cartilaginous cap) which now measures 60 x 45 mm as compared to the previous measurement of 37 x 37 mm. No radiological signs of invasion are seen either into the surrounding soft tissues or underlying ribs. No evidence of local or distant metastasis is seen as well. An interval increase in the size of the cartilaginous cap is suspicious which needs further evaluation with MRI (for the exact thickness of the cap) and possible subsequent histopathological correlation to rule out malignancy.