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Clinical presentation:
38 year old male with pain in back and paraplegia.

There is a dense mass in the right lower zone with some crowding of right 9th and 10th ribs. An earlier higher penetration view shows the 10th rib expanded by the tumour. Note how the dense bone of the tumour seems to be in layers over the rib, hiding it. The lateral view shows the destruction of the posterior section of the right 9th rib.
There is a dense horizontal line in the chest X-ray that corresponds to a horizontal fissure, above a shrunken right lower lobe. The large bone-forming lesion, revealed in the lateral view, appears to be invading the lung and probably the horizontal fissure. The mass is, otherwise, not following the pleural spaces.

[More information]

[Differential]

cases that might resemble this pathology

[View large image] Chondroma of rib. (case report) [View large image] Pleural or Granuloma calcifications, Old left apical TB. (case report)
[View large image] Osteosarcoma ossifying metastasis. (case report) [View large image] Include para-spinal tumours Haemangiopericytoma. (case report) or Neurofibroma.
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[London South Bank U.]

IDM April 2007