MRI of the same patient 4 months later shows resolution of the hematoma. MR neurography of the lumbosacral plexus demonstrates thickening and hyperintensity of the right sciatic nerve compared to the left, most pronounced distal to the greater sciatic foramen. Partial fiber discontinuity in this region is difficult to exclude.
Marked hyperintensity of the right superior gluteal nerve is also compatible with neuritis. Oedema in the right gluteus medias muscle may be due to traumatic injury and/or denervation.
Again, seen is a right iliac bone fracture.