Secondary Logo

Journal Logo

Institutional members access full text with Ovid®

Spinal Epidural Venous Plexus Pathology in Hirayama Disease

Macey, Mathew B. BS*; Ho, Doreen T. MD*; Parres, Christopher M. MD; Small, Juan E. MD

Journal of Clinical Neuromuscular Disease: September 2019 - Volume 21 - Issue 1 - p 47–51
doi: 10.1097/CND.0000000000000243
Short Report

Hirayama disease is a rare juvenile amyotrophy that is often misdiagnosed as an unrelated, relentlessly progressive disease. We present the case of an 18-year-old man who presented with weakness and atrophy of the right forearm and hand. Dynamic cervical magnetic resonance imaging was used, revealing the classic findings of epidural venous plexus dilation and anterior displacement of the dural sac. In addition, dilation of the external vertebral venous plexus was visualized. We discuss the clinical utility of dynamic magnetic resonance imaging and the underlying pathophysiology of these findings in Hirayama disease.

*Department of Neurology, Lahey Hospital and Medical Center, Burlington, MA;

Department of Neurology, Henry Ford Medical Group, Detroit, MI; and

Department of Diagnostic Radiology, Lahey Hospital and Medical Center, Burlington, MA.

Reprints: Mathew B. Macey, BS, Department of Neurology, Lahey Hospital and Medical Center, 41 Mall Road, Burlington, MA 01805 (e-mail:

The authors report no conflicts of interest.

Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved