European Journal of Anatomy

Official Journal of The Spanish Society of Anatomy
Cover Volume 9 - Number 3
Eur J Anat, 9 (3): 155-156 (2005)

An anomalous abductor digiti minime-muscle - A case report

Vollala V.R., Prasad A.M., Samuel V.P.

Department of Anatomy, Melaka Manipal Medical College (Manipal Campus), ICHS, Manipal, Karnataka-576 104, India; Department of Anatomy, Melaka Manipal Medical College (Manipal Campus), International Centre for Health Sciences, Manipal-576104, Karnataka State, India

ABSTRACT The accessory fasciculi of the hypothenar muscles have been implicated in vascular and nerve compression. During a routine dissection of an adult male cadaver we observed an accessory belly of the abductor digiti minimi muscle. The accessory belly was found to take its origin from the deep forearm fascia, and traversed Guyon's canal superficial to the ulnar nerve and vessels to reach the hypothenar eminence. Its course through Guyon's canal could be a cause for ulnar tunnel syndrome. The ulnar nerve trunk innervated the muscle.

Keywords: abduction, abductor digiti minimi muscle, adult, article, cadaver, cubital tunnel syndrome, fascia, forearm, human, human tissue, male, muscle contraction, muscle innervation, muscle malformation, nerve compression, skeletal muscle, ulnar nerve

European Journal of anatomy
ISSN 2340-311X (Online)