Background: Arterial variations can cause many problems in treatment of patients. So, it seems that knowledge about these variations can improve the process of treatments.

 Case Report: During dissection of a 55 year-old male cadaver, it was seen that radial artery had been separated from the second part of axillary artery and brachial artery had been continued in forearm as ulnar artery.

Conclusion: This variation is important because radial artery is used for injection of drugs, catheterization and bypass grafting of coronary arteries. Attention to this variation may facilitate the surgical approaches and decrease the risk of arterial injuries in upper limb.