MRI
In the proximal metaphyseal-diaphyseal region of the left humerus, there is an expansive lesion with well-defined margins, high signal intensity on T2, and intermediate signal on T1, with a sclerotic rim. There are intralesional foci suggestive of interior calcification. The contrast impregnation is heterogeneous, with areas of low enhancement. The lesion is situated juxtacortically.
The lesion measures 6.4 x 2.1 x 2.5 cm.