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Penumbra sign in osteomyelitis
Penumbra sign in osteomyelitis
Magnetic resonance imaging (MRI) scan shows the penumbra sign (a transitional zone with relatively high signal intensity between abscess and sclerotic bone marrow on T1-weighted MRI).
Reproduced with permission from: Shih HN, Shih LY, Wong YC. Diagnosis and treatment of subacute osteomyelitis. J Trauma 2005; 58:83. Copyright © 2005 Lippincott Williams & Wilkins.
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