Entrapment and compressive neuropathies are frequent clinical conditions occurring about the elbow. In most instances clinical and electromyograhic evaluation are adequate for patient management, but in some cases further evaluation with imaging techniques is required. Magnetic resonance imaging (MRI) has been shown to be useful in the evaluation of these conditions, especially to detect space occupying lesions. In this article, compressive neuropathies involving the ulnar, median, and radial nerves are discussed, with emphasis on the normal anatomy and the MRI depiction of pathologic findings.