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An unusual variation was observed in the right side of a 60-year-old female cadaver during routine dissection. The superior thoracic artery from 1st part of axillary artery was as usual. There was no thoraco-acromial trunk, but the 4 branches of the trunk, deltoid, pectoral, acromial and clavicular were found to arise directly from the 2nd part of axillary artery. A common trunk from the 2nd part was found to give rise to most of the branches of the 2nd and 3rd parts of axillary artery.
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