Clinical presentation and radiographic findings of distal biceps tendon degeneration: a potentially forgotten cause of proximal radial forearm pain.

For patients who present insidiously with proximal-radial forearm pain, the differential diagnosis should include distal biceps tendon degeneration. If radial tunnel and pronator syndromes, lateral epicondylitis, and radiocapitellar arthritis are eliminated as potential causes, tenderness over the proximal radius, supination weakness, and characteristic radiographic or magnetic resonance imaging findings may facilitate correct diagnosis of distal biceps tendon degeneration. In this article, we describe the clinical presentation and radiographic findings for 5 patients who presented with distal biceps degeneration.