CHORUS Collaborative Hypertext of Radiology
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avascular necrosis (AVN) stagingStage CT/xray bone scan ----- ------- --------- I - cold/hot spot II sclerotic focus with osteopenic ring III "crescent sign" (subchondral lucency) IV articular collapse flattening of femoral head sensitivity 86% 78% specificity 79% 75% see also: avascular necrosis (AVN)
Brian Funaki, MD - 8 February 1995 Last updated: 1 October 2013
Copyright © 2013, Charles E. Kahn, Jr. |