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Orthop Clin North Am. 2004 Jul;35(3):315-20, ix.

Pathologic conditions mimicking osteonecrosis.

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  • 1Department of Radiology, Duke University Medical Center, Erwin Road, Durham, NC 27710, USA.


MRI has become increasingly helpful in establishing an early diagnosis of avascular necrosis(AVN). AVN often demonstrates a classic pattern on MRI; findings earlier in the course of the disease are less specific. Many pitfalls can complicate interpretation, and a number of pathologic conditions can share features of early AVN on MRI and plain radiographs. These entities should be distinguished from AVN, because treatment and prognosis may differ significantly.

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