Neuralgic Amyotrophy Manifesting as Mimicking Posterior Interosseous Nerve Palsy

ger extensor muscle paresis. One week prior to presentation, he had experienced severe right neck and shoulder pain that disturbed his sleep. He was initially diagnosed with a herniated cervical disk in a primary clinic, and he experienced intolerable pain that was not easily controlled with analgesics or physiotherapy. After 5 days, the severe pain remitted, but the patient suddenly developed right finger drop. On admission, neurological examination revealed right wrist extension weakness (G4/5), finger extension weakness (Gr1/5), and hand grasp weakness (Gr4/5), but the patient did not exhibit abnormal sensory changes or tenderness on his affected forearm and hand