جستجوی مقالات مرتبط با کلیدواژه "medial cord" در نشریات گروه "پزشکی"

The brachial plexus is the largest and most complex nerve network in the body, which is formed in the neck and enters the axillary cavity after passing under the clavicle. So far, many variations have been reported in the brachial network, which are clinically important. The plexus has three cords, one of which is the medial cord. The medial cutaneous nerve of the arm and the medial cutaneous nerve of the forearm are the branches of the medial cord that innervate the skin of the medial surface of the arm and forearm, respectively. In this study, a rare variation was observed in the branches of the medial cord of the brachial plexus during the dissection of the upper limb of an approximately 80-year-old man in the Dissection Hall of Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Thus, in normal condition, there is no connection between the medial cutaneous nerve of the arm and the medial cutaneous nerve of the forearm, and each of them innervates the skin of the medial arm and forearm separately, but in this case, these two nerves are connected. And since knowing this type of variation is very important for surgeons, more studies are needed to determine its prevalence in the population.

Up to now, several variations have been reported regarding the formation of brachial plexus and its cords; and each of these variations have importance in clinical practice. In the present report, a rare variation is reported about the situation of the medial cord and its branches. A rare variation was observed in the brachial plexus of the right axilla as the medial and lateral cords were located on the lateral side of the second part of the axillary artery and the posterior cord was in its normal position. Awareness of these variations is important to anatomists, radiologists, anesthesiologists and surgeons to interpret unexplained clinical signs and symptoms and can prevent from any post-operative complications during surgery.