Internal Thoracic Artery Encircled by an Unusual Phrenic Nerve Loop

We report an anatomic variation of the phrenic nerve. During a routine gross anatomical dissection course at our medical university, we found an unusual loop of the left phrenic nerve around the internal thoracic artery, about 1 cm from the take-off of the left subclavian artery. The phrenic nerve i...

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Bibliographic Details
Main Authors: Robert Fu-Chean Chen, Yung-Yu Tsai, Hellen Jeng
Format: Article
Language:English
Published: Elsevier 2007-12-01
Series:Journal of the Formosan Medical Association
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0929664608600868
Description
Summary:We report an anatomic variation of the phrenic nerve. During a routine gross anatomical dissection course at our medical university, we found an unusual loop of the left phrenic nerve around the internal thoracic artery, about 1 cm from the take-off of the left subclavian artery. The phrenic nerve is close to the internal thoracic artery and is easily injured when dissecting the internal thoracic artery for coronary artery bypass conduit. Therefore, we suggest that the anatomic relationship of the phrenic nerve and internal thoracic artery is important in preventing incidental injury of the phrenic nerve.
ISSN:0929-6646