Bilateral femoral neck stress fractures
Athlete with 1 year history of bilateral groin pain.
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Bilateral transcervical fracture line of the femoral neck seen as a linear low signal extending from the medial to the superior femoral neck within an area of bone marrow edema of high signal on T2-STIR sequences. Note mild bilateral joint effusion with edematous infiltration of the adjacent soft tissues.
Femoral neck stress fracture is a rare condition, especially in its bilateral form, and is usually observed in high-level athletes. MRI is the best modality to detect the fracture line and its extension, as well as the edematous infiltration of the adjacent soft tissues and to exclude a cartilaginous or ligamentous injury.
Additional contributor: Z E Boudiaf MD.