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Widespread inflammatory response to osteoblastoma: the flare phenomenon
J R Crim1, J M Mirra, J J Eckardt
1Department of Radiological Sciences, University of California, Los Angeles School of Medicine 90024.
Radiology
|December 1, 1990
Abstract:
A case of vertebral osteoblastoma caused a diffuse, reactive inflammatory infiltrate in two vertebrae, adjacent ribs, and the paraspinous soft tissues. The authors call this the flare phenomenon. On magnetic resonance images the diffuse inflammatory response caused a misleading appearance that simulated a malignant process (lymphoma or Ewing sarcoma). A computed tomographic myelogram was diagnostic.