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Nanthakumar H, Iwanaga J, Dumont AS, Tubbs RS. A rare cadaveric case of a duplicated internal thoracic artery. Anat Cell Biol 2020; 53:366-368. [PMID: 32727954 DOI: 10.5115/acb.20.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/20/2020] [Accepted: 06/05/2020] [Indexed: 11/27/2022] Open
Abstract
The internal thoracic artery (ITA) arises from the subclavian artery and terminates as the musculophrenic and inferior epigastric arteries. During routine cadaveric dissection, an aberrant left ITA was discovered. A medial and a lateral branch of the ITA branched directly off the subclavian artery as opposed to bifurcating at the 6th or 7th intercostal space. To our knowledge, this is the first reported case of this particular ITA variation arising from the third part of the subclavian artery. Additionally, such a variant might also be considered a high bifurcation of the ITA. Our report examines this variation and its potential implications for coronary artery bypass grafts where the ITA is commonly used.
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Affiliation(s)
- Harry Nanthakumar
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA
| | - Joe Iwanaga
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA
| | - Aaron S Dumont
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA
| | - R Shane Tubbs
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA.,Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA.,Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, USA.,Department of Anatomical Sciences, St. George's University, St. George's, Grenada, West Indies
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Nanthakumar H, Iwanaga J, Dumont AS, Tubbs RS. A rare cadaveric case of a duplicated internal thoracic artery. Anat Cell Biol 2020; 53. [PMID: 32727954 PMCID: PMC7527130 DOI: 10.25373/ctsnet.7611560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The internal thoracic artery (ITA) arises from the subclavian artery and terminates as the musculophrenic and inferior epigastric arteries. During routine cadaveric dissection, an aberrant left ITA was discovered. A medial and a lateral branch of the ITA branched directly off the subclavian artery as opposed to bifurcating at the 6th or 7th intercostal space. To our knowledge, this is the first reported case of this particular ITA variation arising from the third part of the subclavian artery. Additionally, such a variant might also be considered a high bifurcation of the ITA. Our report examines this variation and its potential implications for coronary artery bypass grafts where the ITA is commonly used.
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Affiliation(s)
- Harry Nanthakumar
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA
| | - Joe Iwanaga
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA,Corresponding author: Joe Iwanaga Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA 70112, USA E-mail:
| | - Aaron S. Dumont
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA
| | - R. Shane Tubbs
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA,Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, USA,Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, USA,Department of Anatomical Sciences, St. George’s University, St. George’s, Grenada, West Indies
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