Widespread inflammatory response to osteoblastoma: the flare phenomenon.

Crim, J R; Mirra, J M; Eckardt, J J; Seeger, L L · Radiology · 1990

case_report · Level V

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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.

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