This article illustrates the magnetic resonance imaging (MRI) features of occult osseous lesions in three different patients. All three patients suffered from a history of wrist trauma, but had negative plain film radiographs. The three types of occult lesions (bone bruise, microfracture and chronic osseous damage) are described, and their MRI characteristics are demonstrated by proton density and T2 weighted images. MRI proved to be the diagnostic modality of choice for the detection of posttraumatic intrinsic marrow changes.
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