Compression of the ulnar nerve is most commonly caused by ganglions, lipomas, anomalous tendon and muscles, trauma related to an occupation and arthritis in the upper limb; however, nerve compression in the upper limb and, more importantly, in the proximal forearm by a vascular lesion is rare. A rare case of ulnar nerve compression in the proximal forearm by an arteriovenous malformation in a 45-year-old man who presented with six-year history of gradually increasing swelling in medial aspect of proximal forearm is reported. After excision of the tumour, it was found to be an arteriovenous malformation.
ErkinG., UysalH., KelesI., AybayC., OzelS.. Acute ulnar neuropathy at the wrist: A case report and review of the literature.Rheumatol Int2006; 27: 191-6.
2.
PapathanasiouE.S., LoizidesA., PanayiotouP., PapacostasS.S., KleopaK.A.. Ulnar neuropathy at Guyon's canal: Electrophysiological and surgical findings.Electromyogr Clin Neurophysiol2005; 45: 87-92.
3.
AguiarP.H., Bor-Seng-ShuE., Gomes-PintoF.Surgical management of Guyon's canal syndrome, an ulnar nerve entrapment at the wrist: Report of two cases.Arq Neuropsiquiatr2001; 59: 106-11.
4.
BozkurtM.C., TagilS.M., OzçakarL., ErsoyM., TekdemirI.. Anatomical variations as potential risk factors for ulnar tunnel syndrome: A cadaveric study.Clin Anat2005; 18: 274-80.
5.
ErkinG., UysalH., KelesI., AybayC., OzelS.. Acute ulnar neuropathy at the wrist: A case report and review of the literature.Rheumatol Int2006; 27: 191-6.
6.
JoseR.M., BraggT., SrivastavaS.. Ulnar nerve compression in Guyon's canal in the presence of a tortuous ulnar artery.J Hand Surg Br2006; 31: 200-2.
7.
KochH., HaasF., PiererG.. Ulnar nerve compression in Guyon's canal due to a haemangioma of the ulnar artery.J Hand Surg Br1998; 23: 242-4.
8.
SheaJ.D., McClainE.J.. Ulnar-nerve compression syndromes at and below the wrist.J Bone Joint Surg Am1969; 51: 1095-103.
