Right upper femur namely neck and upper shaft expansile central medullary lesion. The lesion has well-defined margins with evidence of cortical breaching along the medial aspect of the femoral neck. The bony lesion measure about 3.2 x 3.8 x 5.8 cm along its maximal axial and cranio-caudal dimensions. The lesion elicits low signal on T1 Wis, a high signal on T2 and STIR WIs with an area of intermediate T1 and T2 WI signal along its superior portion measuring 2.8 cm showing heterogeneous enhancement along its superior portion. The lesion is seen marginated by the sclerotic rim with internal fine septations within. No related soft tissue components are seen.No MR evidence of involvement of the adjacent joint. No skip lesions could be detected with normal bone marrow signal of the other bony structures.