Presentation
Chronic groin pain more on the left.
Patient Data
Reduced ischiofemoral space bilaterally between medial cortex of the lesser trochanter and lateral cortex of the ischial tuberosity measuring 12 mm on the right and 13 mm on the left with associated oedema and enhancement of the quadratus femoris muscles mainly of the left.
Case Discussion
The MRI features are most consistent with bilateral ischiofemoral impingement more pronounced on the left.
Ischiofemoral impingement is defined as an impingement of quadratus femoris muscle between the ischial tuberosity and lesser trochanter of the femur, resulting in muscle oedema +/- enhancement in early phase and fatty infiltration and muscle atrophy in the chronic phase.