Table 4.

All of the findings in the present study

Anomaly	Number of cases	Number of plexuses
C4 spinal root contributed to origin of the brachial plexus (pre-fix)	3	6
T2 spinal root contributed to origin of the brachial plexus (post-fix)	1	2
The long thoracic nerve pierced the middle scalene muscle	6	12
Suprascapular nerve encompassed the nerve formation from posterior division of the superior trunk	4	7
A anastomosis between the medial brachial cutaneous nerve and T1 spinal root	5	10
The inferior trunk gave origin to the medial antebrachial cutaneous nerve	17	33
The subscapular nerve was directly formed by C5 spinal root	3	6
The medial pectoral nerve sprouted from anterior division of medial trunk	1	2
Thoracodorsal nerve originated from the axillary nerve	1	2
The ulnar nerve received a communicating branch from lateral cord	3	6
The median nerve was formed by two lateral roots from lateral cord and one medial root from the medial cord	6	12
the musculocutaneous nerve gave communicating branch to median nerve or median nerve took one branch from the posterior cord of the plexus	5	10
C7 root enters to musculocutaneous nerve	8	14
C7-T1 roots were directly projected to make radial nerve	1	2
The axillary nerve originated from the posterior divisions of middle trunks	4	8
The axillary nerve originated from the posterior divisions of superior trunks	1	1