The most common chief complaint is intermittent pain in the wrist, associated with sustained pronation, frequently misinterpreted by patients and providers as "tendonitis." This is usually accompanied by the perception of "hand weakness," and "dropping things." The characteristic physical finding is tenderness over the proximal median nerve, with ensuing numbness in the hand in less than a minute, and/or numbness in the hand with resisted pronation of the forearm in less than a minute. The flexor pollicis longus and FDP of the index finger are weak, leading to impairment of pinching firmly. This reflects involvement of the anterior interosseous nerve. Sensory changes may be found in the first three fingers as well as in the palm, indicating impairment of the median nerve proximal to the flexor retinaculum, but tend to involve the sensation of the entire hand going numb at night, with any pressure on the median nerve on the areas at the inside of the elbow. The clinical and electrophysiological features of<unk>  are quite different from patients with carpal tunnel syndrome or pure anterior interosseous syndrome, and are typically normal. Proper localisation is crucial to treatment options. Conduction velocity of the median nerve in the proximal forearm may be slow but the distal latency and sensory nerve action potential at the wrist are normal. Although MRI may show denervation atrophy of the affected muscles, its role in the evaluation of<unk>  is unclear.⁠ If the EMG or the MRI are abnormal for the<unk><unk>  muscle and the flexor carpi radialis, this implies that the problem is at or proximal to the elbow, as the takeoff of the nerves to these muscles occurs proximal to the elbow.
Pronator teres syndrome
Piriformis syndrome
Legius syndrome
Cauda equina syndrome
Worth syndrome
Cuboid syndrome
Carpal tunnel syndrome
Anterior interosseous syndrome