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Multiple myeloma pseudotumor (Fibrogenesis imperfecta ossium) - Spine - X-ray
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Multiple myeloma pseudotumor (Fibrogenesis imperfecta ossium) - Spine - X-ray
  • Case ID: 976
  • Diagnosis: Multiple myeloma pseudotumor (Fibrogenesis imperfecta ossium)
  • Category: Pseudotumors
  • Category Type: Round cell
  • Category Sub Type: Benign
  • Location: Spine
  • Age: 40
  • Sex: M
  • Treatment: Observation
  • Image ID: 4842
  • Image Type: X-ray
  • Images relating to this case: 4840 , 4841 , 4842, 4843 , 4844 .

Lateral radiograph of the lumbar spine at a later date showing progressive codfish collapse of the vertebra at multiple levels, similar to what we see in patients with myeloma. On a biopsy specimen, the pathologist found large numbers of plasma cells in the bone marrow and the collagen fibers within the bone osteoid were not birefringent when viewed with a polarized microscope, which is characteristic of fibrogenesis imperfecta ossium.


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