-Case Reports-

Proximal Entrapment Neuropathy of the Median Nerve above the Elbow -Case Report

Daijiro Morimoto^1,2, Toyohiko Isu¹, Kyongsong Kim³, Atsushi Sugawara⁴, Masanori Isobe¹ and Akio Morita²

¹Department of Neurosurgery, Kushiro Rosai Hospital
²Department of Neurosurgery, Nippon Medical School
³Department of Neurosurgery, Nippon Medical School Chiba Hokusoh Hospital
⁴Department of Neurosurgery, Iwate Medical University

We report an extremely rare case of proximal entrapment neuropathy of the median nerve above the elbow in a 44-year-old man who presented with paresthesia with median nerve distribution. Tinel's sign was located in the upper arm medial to the biceps and 5 cm proximal to the elbow. The patient underwent microsurgery under local anesthesia. The fascia covering the brachial- and the biceps brachii muscle entrapped median nerve. After operation, he reported symptom improvement. Lesions above the elbow should be considered as possible causative factors of entrapment neuropathy of the median nerve.

J Nippon Med Sch 2015; 82: 287-289

Keywords
median nerve, entrapment neuropathy, operation

Correspondence to
Daijiro Morimoto, MD, PhD, Department of Neurosurgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
dai_sampo@yahoo.co.jp

Received, December 31, 2014
Accepted, March 24, 2015