MR neurography in intraosseous median nerve entrapment

Figure 1 Images of first patient with intraosseous median nerve entrapment. A: Clinical Photograph showing inability to close fist completely with partial flexion of the index finger; B: Atrophy of anterior compartment muscles of left forearm; C: Sonogram shows thickened and hypoechoic median nerve (arrow), coursing posteriorly through the fractured bone; D: SE T1 W MR axial image shows atrophy of anterior compartment muscles of forearm with fatty infiltration s/o chronic denervation changes (arrow).