Forensic Medicine and Anatomy Research
Vol.03 No.01(2015), Article ID:52830,1 pages

Reply: Anomalous muscles in carpal tunnel associated with neurovascular variation: Case report and brief review

Kiwook Yang, Hyunsu Lee, Jae-Ho Lee, In-Jang Choi*

Department of Anatomy, School of Medicine, Keimyung University, Daegu, South Korea

Email: *

Academic Editor: Ping Huang, Department of Forensic Pathology, Institute of Forensic Science, Ministry of Justice, China

Copyright © 2015 by authors and Scientific Research Publishing Inc.

This work is licensed under the Creative Commons Attribution International License (CC BY).

Received 17 September 2014; revised 24 October 2014; accepted 10 November 2014


Gantzer’s muscle is an additional muscle in the forearm. We studied the incidence and the morphology of Gantzer’s muscle and its relation with neurovascular structures. However, unlike the previous suggestion by Eid et al., there is no significant difference in the frequency of the variations of these nerves whether Gantzer’s muscle is present or not.


Gantzer’s muscle, anterior interosseous nerve, median nerve

Letter to the Editor

We read the case report by Eid et al. [1] published in this journal with interest. They reported a case with bilateral Gantzer’s muscles accompanying variations of the median nerve in which the carpal tunnel laid [1] . Similar variations were reported by many authors, suggesting that high division of the median nerve within the carpal tunnel might be associated with Gantzer’s muscle [1] -[3] .

Under great concern about Gantzer’s muscle, we examined its frequency and anatomical correlation with neurovascular structures in the forearm. Gantzer’s muscles were found in 14 (46.7%) of 30 upper limbs. We inspected the correlation between the presence of Gantzer’s muscles and the variations of the median and anterior interosseous nerves. However, there is no significant difference in the frequency of the variations of these nerves whether Gantzer’s muscle is present or not. On the other hand, we found a topographic correlation between the arterial branching point and the presence of Gantzer’s muscle and these data were still collecting. Therefore, we would like to mention that further study with larger cases and statistical approach should be needed to clarify this hypothesis.


  1. Eid, N., Ito, Y. and Otsuki, Y. (2014) Anomalous Muscles in Carpal Associated with Neurovascular Variations: Case Report and Brief Review. Forensic Medicine and Anatomy Research, 2, 8-10.
  2. Barbe, M., Bradfield, J., Donathan, M. and Elmaleh, J. (2005) Coexistence of Multiple Anomalies in the Carpal Tunnel. Clinical Anatomy, 18, 251-259.
  3. Pierre-Jerome, C., et al. (2010) MRI of the Median Nerve and Median Artery in the Carpal Tunnel: Prevalence of Their Anatomical Variations and Clinical Significance. Surgical and Radiologic Anatomy, 32, 315-322.


*Corresponding author.