Radial tunnel syndrome

Radial tunnel syndrome can also be called posterior interosseous compression neuropathy. Radial tunnel syndrome happens when a branch of the radial nerve (PIN) is squeezed where it passes through a tunnel near the elbow. The radial nerve is one of the three main nerves in the arm. It runs from the neck, through the back of the upper arm, crosses the
outside of the elbow and goes down the forearm to the hand.