Bone metastasis of the subtrochanteric femur shaft
Leg pain on weight bearing. Known prostate cancer.
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Bone marrow infiltration by solid tissue, cortical thickening and signal alteration, inflammatory periostal reaction.
Prostate cancer metastasis, presenting as an irregular signal abnormality in the proximal shaft of the right femur. The aggressive nature of this lesion is shown by its extension through the cortex without significant destruction of the cortex (yet).