Abstract
Wartenberg's syndrome, an entrapment neuropathy of the superficial radial nerve, frequently presents significant diagnostic challenges, often with normal electroneuromyography findings despite debilitating clinical symptoms. This case report details a patient experiencing severe post-traumatic neuropathic pain highly consistent with Wartenberg's syndrome. High-resolution ultrasound proved pivotal in revealing focal nerve enlargement and confirming the diagnosis, which was missed by conventional electroneuromyography. Subsequent ultrasound-guided hydrodissection led to substantial and sustained pain relief and functional recovery. This case underscores the indispensable role of high-resolution ultrasound in diagnosing Wartenberg's syndrome when traditional electrophysiological studies are inconclusive and demonstrates the effectiveness of hydrodissection as a minimally invasive therapeutic solution for managing this challenging neuropathic pain.