Sandbox: Bone DDx: Difference between revisions

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* 10-20 yo patients
* 10-20 yo patients
* Gradual onset of bone pain
* Asymptomatic
* Pathologic fractures


* Limb swelling, tenderness, and warmth
* Often Unremarkable
* Palpable lump
* Restricted range of motion


* Bony trabeculae or osteoid tissue
* No specific lab finding
* Osteoclast giant cells
* Benign spindle cells
* Blood-filled spaces of variable sizes


* Sharply defined, expansile osteolytic lesion on CT
* Cysts contain clear serosanguineous fluid
* Thin sclerotic margins
* Fibrous membranous lining
* Air-fluid levels
 
* Doughnut sign on bone scan
* Well defined geographic lucent lesions on Xray
* Sclerotic margin
* No periosteal reaction
* Thinning of the endosteum and pseudotrabeculation

Revision as of 15:54, 23 November 2015

  • 10-20 yo patients
  • Asymptomatic
  • Pathologic fractures
  • Often Unremarkable
  • No specific lab finding
  • Cysts contain clear serosanguineous fluid
  • Fibrous membranous lining
  • Well defined geographic lucent lesions on Xray
  • Sclerotic margin
  • No periosteal reaction
  • Thinning of the endosteum and pseudotrabeculation
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