case_images: PMC2941597_01
case_images: Axial CT image showing a lobulated, soft tissue density mass with calcification and sclerosis, and is seen destroying the rib
case_images: IJMPO-31-18-g001.jpg
case_images: PMC2941597_01_IJMPO-31-18-g001.jpg
case_images: F0001
case_images: A computed tomography (CT) scan showed a lobulated, extra pleural, soft tissue density, with calcification involving the fifth and sixth ribs, which showed sclerosis and destruction [Figure 1].
case_images: Cut surface of the tumor with attached rib
case_images: IJMPO-31-18-g002.jpg
case_images: PMC2941597_01_IJMPO-31-18-g002.jpg
case_images: F0002
case_images: The tumor was seen involving and encasing all the ribs [Figure 2].
case_images: Neoplastic cells rimming haphazardly laid osteoid (H and E, x200)
case_images: IJMPO-31-18-g003.jpg
case_images: PMC2941597_01_IJMPO-31-18-g003.jpg
case_images: F0003
case_images: Microscopic examination showed a malignant neoplasm composed of pleomorphic, round-to-spindle shaped cells, which were rimming haphazardly - laid tumor osteoid [Figure 3].