title: Widespread inflammatory response to osteoblastoma: the flare phenomenon.
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.
authors: Department of Radiological Sciences, University of California, Los Angeles School of Medicine 90024.
authors: J R
authors: JR
authors: Crim
authors: J M
authors: JM
authors: Mirra
authors: J J
authors: JJ
authors: Eckardt
authors: L L
authors: LL
authors: Seeger
mesh_terms: D000328:Adult; D006801:Humans; D007249:Inflammation / Q000209:etiology*; D008279:Magnetic Resonance Imaging; D008297:Male; D010017:Osteoma, Osteoid / Q000150:complications*; D013125:Spinal Neoplasms / Q000150:complications*