Lipoma intraóseo en fémur proximal.

We presented a case of a patient seventy and four years old with a painful left hip during the last 12 months. On the x-ray exploration, appear a quistic lesion, localizated on the proximal femur and with arthrosis signs of the coxofemo- ral joint. We indicated a total hip arthroplasty, cemented, du- ring the surgery the lesion is legrated, and the histologic study reveal a intraosseus lipoma, without maling signs. At two ye- ars, the patient is asintomatic, and no indicius of the femoral tumor. We presented this case, the intraosseus lipoma, ma- king the diferential diagnosis and revised the bibliografy of this rare osseous tumor.