الفهرس 
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Abstract
Radial tunnel syndrome is a compressive neuropathy caused by entrapment of the deep branch of radial nerve in the radial tunnel. The “radial tunnel” is a potential space, about 5cm long and is located anterior to the proximal radius, from the humeroradial joint to the distal edge of the supinator. Laterally, it is bound by the brachioradialis, and extensor carpi radialis longus/brevis muscles, while medially, it is bound by the biceps tendon and brachialis. The anterior capsule of the radiohumeral joint form the floor of the tunnel. The roof is formed by fibrous adherences between the muscles of the medial and lateral walls, superomedial portion of the extensor carpi radialis brevis and the superficial layer of the supinator muscle (Naam and Nemani, 2012).The deep branch of radial nerve may be compressed by the arcade of Frohse, other tissues of the supinators, the leash of Henry from the radial artery, and the edge of the extensor carpi radialis brevis muscle. The arcade of Frohse is an anatomical variant that is found in about 30-50% of the population and is located at the proximal edge of the supinator (Tsai and Steinberg, 2008).Deep and aching night pain is typically present at the proximal dorsoradial aspect of the forearm. Along with forearm rotation, forceful elbow extension may produce pain. Most affected are manual laborers performing work that requires handling tools with full extension of the elbow. Tenderness to palpation occurs over the radial tunnel (the area of the radial neck), 3-5cm distal to lateral epicondyle, rather than the lateral epicondyle (Sarris et al., 2002).