title: MR anatomy and pathology of the ulnar nerve involving the cubital tunnel and Guyon's canal.
abstract: Ulnar neuropathy is a common and frequent reason for referral to hand surgeons. Ulnar neuropathy mostly occurs in the cubital tunnel of the elbow or Guyon's canal of the wrist, and it is important for radiologists to understand the imaging anatomy at these common sites of impingement. We will review the imaging and anatomy of the ulnar nerve at the elbow and wrist, and we will present magnetic resonance imaging examples of different causes of ulnar neuropathy, including trauma, overuse, arthritis, masses and mass-like lesions, and systemic diseases. Treatment options will also be briefly discussed.
authors.affiliation: Department of Radiologic Sciences, Ronald Reagan-UCLA Medical Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095.
authors.forename: Luyao
authors.initials: L
authors.lastname: Shen
authors.affiliation: Department of Radiology, Greater Los Angeles Veterans Affairs Medical Center, Los Angeles, CA 90073.
authors.forename: Sulabha
authors.initials: S
authors.lastname: Masih
authors.affiliation: Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033-5313.
authors.forename: Dakshesh B
authors.initials: DB
authors.lastname: Patel
authors.affiliation: Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033-5313. Electronic address: matcuk@usc.edu.
authors.forename: George R
authors.initials: GR
authors.lastname: Matcuk
mesh_terms: D004551:Elbow Joint / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D014459:Ulnar Nerve / Q000473:pathology*; D017769:Ulnar Nerve Compression Syndromes / Q000473:pathology*; D014953:Wrist / Q000473:pathology
keywords: Cubital tunnel; Guyon’s canal; Musculoskeletal MRI; Ulnar nerve