title: Abnormal Origin and Course of the Accessory Phrenic Nerve: Case Report.
abstract: In the current cadaveric study an unusual sizeable accessory phrenic nerve (APN) was encountered emerging from the trunk of the supraclavicular nerves and forming a triangular loop that was anastomosing with the phrenic nerve. That neural loop surrounded the superficial cervical artery which displayed a spiral course. The form of a triangular loop of APN involving the aforementioned artery and originating from the supraclavicular nerve to the best of our knowledge has not been documented previously in the literature. The variable morphological features of the APN along with its clinical applications are briefly discussed.
authors.affiliation: Department of Anatomy, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece. g_paraskevas@yahoo.gr.
authors.forename: George
authors.initials: G
authors.lastname: Paraskevas
authors.affiliation: Department of Anatomy, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Koutsouflianiotis
authors.affiliation: Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Ioannina, Ioannina, Greece.
authors.forename: Panagiotis
authors.initials: P
authors.lastname: Kitsoulis
authors.affiliation: Department of Anatomy, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
authors.forename: Ioannis
authors.initials: I
authors.lastname: Spyridakis
mesh_terms: D000368:Aged; D001158:Arteries / Q000033:anatomy & histology / Q000294:innervation; D002574:Cervical Vertebrae / Q000294:innervation; D006801:Humans; D008297:Male; D009333:Neck / Q000294:innervation; D010791:Phrenic Nerve / Q000002:abnormalities* / Q000033:anatomy & histology
keywords: Accessory; Applications; Phrenic nerve; Variation