Presentation

Eighty-four year old female with history of knee osteoarthritis presents with new onset groin pain. Pelvis and femur radiographs show a lesion in the proximal right femur (Figs. 1, 2 and 3)

Fig. 1
figure 1

Coned AP radiograph of the proximal femur

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Fig. 2
figure 2

Corresponding axial T1 weighted image of the proximal femur

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Fig. 3
figure 3

Corresponding axial fat suppressed FSE T2weighted image

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