Naveen Vasireddy MBBS, FRCR, Presenter: Nothing to Disclose

Syahminan Suut MBChB, FRCR, Abstract Co-Author: Nothing to Disclose

Mohammad Waseem, Abstract Co-Author: Nothing to Disclose

Jochen Fischer, Abstract Co-Author: Nothing to Disclose

Suresh Babu Amilineni Venkat MBBS, MD, Abstract Co-Author: Nothing to Disclose

Kelvin Choi MBChB, Abstract Co-Author: Nothing to Disclose

Rashpal Bassi, Abstract Co-Author: Nothing to Disclose

Introduction The Guyon’s canal is a 4cm long fibroosseous tunnel which extends from palmar carpal ligament along the proximal pisiform bone edge to the aponeurotic arch of the hypothenar muscles. The tunnel of Guyon is clinically significant because of its contents, the ulnar artery, ulnar nerve, accompanying veins and fat. Lesions arising from these structures within the canal and pathology along the margins of the canal can lead to compression of ulnar nerve. Wrist is the second most common site for unlar nerve entrapment after elbow, however, diagnosis of ulnar nerve compression in the Guyon's canal is often delayed Teaching points Our pictorial review aims to raise awareness of ulnar nerve compression in Guyon’s canal Our case-mix includes pathology from fat, nerve and vascular origins ensuring that the reader is exposed to whole gamut Our cases include an interesting collection of intrinsic and extrinsic pathologies involving Guyon's canal

The cases are Neurofibroma Haemangioepithelioma Lipoma Ganglion cyst Hook of hamate fracture  A brief discussion of these cases including clinical presentation, diagnostic pathway, review of current literature and characteristic imaging findings of Guyon's canal pathology as well as normal anatomy are included

http://abstract.rsna.org/uploads/2014/14013614/14013614_w19i.pdf

Vasireddy, N, Suut, S, Waseem, M, Fischer, J, Amilineni Venkat, S, Choi, K, Bassi, R, What's Goin' on in the Guyon's Canal?.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14013614.html