Epineural ganglion causing cubital tunnel syndrome: A case report.

Journal and index pages often block iframe embedding. This reader keeps the evidence details in Orthonotes and leaves the source page one click away.

Abstract

[Indexed for MEDLINE] Conflict of interest statement: Conflict of Interest: The authors declared no conflicts of interest with respect to the authorship and/or publication of this article. 10. Neuroradiol J. 2024 Apr;37(2):137-151. doi: 10.1177/19714009231166087. Epub 2023 Mar 24. Multimodality imaging review of ulnar nerve pathologies. Chaudhary RK(1), Karkala N(2), Nepal P(3), Gupta E(1), Kaur N(4), Batchala P(5), Sapire J(1), Alam SI(6). Author information: (1)Department of Radiology, St. Vincent's Medical Center, Bridgeport, CT, USA. (2)Department of Radiology, Northwell North Shore University Hospital, Long Island Jewish Medical Center, Queens, NY, USA. (3)Department of Radiology, Massachusetts General Hospital, Boston, MA, USA. (4)Department of Radiology, University Hospital of Northern British Columbia, Prince George, BC, Canada. (5)Department of Radiology, University of Virginia, Charlottesville, VA, USA. (6)Department of Radiology, Hamad Medical Corporation, Doha, Qatar. The ulnar nerve is the second most commonly entrapped nerve after the median nerve. Although clinical evaluation and electrodiagnostic studies remain widely used for the evaluation of ulnar neuropathy, advancements in imaging have led to increased utilization of these newer / better imaging techniques in the overall management of ulnar neuropathy. Specifically, high-resolution ultrasonography of peripheral nerves as well as MRI has become quite useful in evaluating the ulnar nerve in order to better guide treatment. The caliber and fascicular pattern identified in the normal ulnar nerves are important distinguishing features from ulnar nerve pathology. The cubital tunnel within the elbow and Guyon's canal within the wrist are important sites to evaluate with respect to ulnar nerve compression. Both acute and chronic conditions resulting in deformity, trauma as well as inflammatory conditions may predispose certain patients to ulnar neuropathy. Granulomatous diseases as well as both neurogenic and non-neurogenic tumors can also potentially result in ulnar neuropathy. Tumors around the ulnar nerve can also lead to mass effect on the nerve, particularly in tight spaces like the aforementioned canals. Although high-resolution ultrasonography is a useful modality initially, particularly as it can be helpful for dynamic evaluation, MRI remains most reliable due to its higher resolution. Newer imaging techniques like sonoelastography and microneurography, as well as nerve-specific contrast agents, are currently being investigated for their usefulness and are not routinely being used currently. DOI: 10.1177/19714009231166087 PMCID: PMC10973834