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Fig. 12 | Insights into Imaging

Fig. 12

From: Can imaging be the new yardstick for diagnosing peripheral neuropathy?—a comparison between high resolution ultrasound and MR neurography with an approach to diagnosis

Fig. 12

a In a case with glass cut injury at the wrist, a hypoechoic ulnar nerve (between arrowheads) is noted with formation of neuroma in continuity (yellow arrow) characterised by thickened, hypoechoic focal area with loss of fascicular architecture. Also noted is soft tissue swelling (red arrow). Yellow arrowhead marks the ulnar artery. b T1- and PDFS-weighted images show the ulnar nerve neuroma which is hypointense on T1 and hyperintense on PDFS (between callipers and yellow arrow respectively) with associated soft tissue oedema (arrowhead). c Focal thickening suggestive of radial nerve neuroma (between cross marks) is seen distal to the spiral groove in a case with monkey bite at the arm. The nerve is seen lying between the brachialis and brachioradialis. d Axial PD fat-saturated sequence of the same patient demonstrates a well-defined ovoid hyperintense lesion (black arrowhead) in continuity with the radial nerve. As the lesion was noted distal to the spiral groove, after supply to the triceps, there is no signal intensity change in the triceps muscle signifying normal innervation to the muscle

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