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Axial and coronal MRI images of right thumb demonstrate well-defined T2w slightly hyperintense, PD fat-sat hyperintense and T1w isointense juxtacortical lesion along the medial (ulnar) surface of the shaft of proximal phalanx of thumb with surrounding inflammatory edema. There is saucerisation (remodelling due to pressure effect) of the underlying cortex; however, there is intact T2w hypointense cortex. Mild marrow edema is noted in the proximal phalanx.