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Fig. 1B —Postsurgical marrow edema without osteomyelitis in 3-year-old
girl who had complete negative workup for infection. T1-weighted unenhanced,
non-fat-saturated (A) and gadolinium-enhanced fat-saturated (B)
coronal images of pelvis show focal linear marrow edema (arrows)
consistent with marrow aspiration tract. MRI was requested after intervention
because of continued concern for underlying osteomyelitis. When surgical
approach is known, focal marrow edema (arrows) can be attributed to
marrow aspiration only. Notice extensive myositis related to surgical
intervention. This patient had no cause for her presenting symptoms after full
workup.
