Morel-Lavallée lesions are closed degloving injuries associated with severe trauma which then present as hemolymphatic masses.

MRI is useful for the diagnosis.

The lesions typically occur over the greater trochanter of the femur, yet, similar biomechanical forces may occur at the lumbar region, over the scapula, the knee, or the leg ¹ can result in identical Morel-Lavallée lesions.