Abstract
Communications between musculocutaneous nerve and median nerve may be of considerable
significance to neurologists and orthopaedicians when dealing with patients of nerve
entrapment syndromes of the upper limb. Many authors have mentioned about an occurrence
of such a variation previously, but the presence of a communication between the two
nerves in both the arms has not been cited to the best of our knowledge. During routine
dissection on a 72 year old male cadaver for the under graduate students in the Department
of Anatomy at K.S. Hegde Medical Academy, we encountered an anomalous communication
between musculocutaneous and median nerve in both the upper limbs. The communicating
branch arose from the musculocutaneous nerve at a distance of 12.6 cm and 12.5 cm
from the tip of coracoid process on right and left side and joined the median nerve
16.2 cm from the same bony point. Communications between nerves like this may explain
abnormal debilities in certain cases of trauma of the upper arm. Lack of awareness
of such variations with different patterns of communications between musculocutaneous
and median nerve might complicate surgical repair of the nerves.
