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A 56-year-old man with fever for 1 week.

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Presentation on theme: "A 56-year-old man with fever for 1 week."— Presentation transcript:

1 A 56-year-old man with fever for 1 week.
A 56-year-old man with fever for 1 week. A, Sagittal T1-weighted (TR/TE, 550/12) MR image shows multiple intraosseous lesions of low signal intensity involving the bodies and posterior elements of the vertebrae superimposed on the diffuse abnormal-signal-intensity marrow. Note an osseous lesion with a positive rim sign (arrow) at the T11 vertebra. B, Sagittal T1-weighted (TR/TE, 700/12) fat-suppressed contrast-enhanced MR image reveals global enhancement of intraosseous lesions (arrows). Note the absence of paraspinal or epidural inflammatory soft tissue. C, Sagittal T1-weighted (TR/TE, 700/12) fat-suppressed contrast-enhanced follow-up MR image obtained 5 months later shows an increase in extent, signal-intensity abnormality, and enhancement of T11, L1, L3, and apparently new L4 lesions (arrows) as well as a decrease in the extent of the L2 lesion (arrowhead). D, Sagittal T1-weighted (TR/TE, 700/12) follow-up MR image obtained 25 months later reveals almost complete reconstitution of fatty marrow in previously affected bone. C.Y. Hsu et al. AJNR Am J Neuroradiol 2008;29: ©2008 by American Society of Neuroradiology

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