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Related Concept Videos

Thoracic Aorta01:15

Thoracic Aorta

426
The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...
426
The Aorta01:14

The Aorta

723
The aorta is the largest artery in the human body. It originates from the left ventricle of the heart and extends down to the abdomen, where it splits into two smaller arteries. Structurally, it can be divided into four main parts: the ascending aorta, the aortic arch, the thoracic aorta, and the abdominal aorta.
The average diameter of the aorta is approximately 2-3 cm, but the size can vary depending on the section of the aorta and the individual's age, sex, and body size. The aorta is...
723

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Related Experiment Video

Updated: Jun 17, 2025

Murine Surgical Model of Topical Elastase Induced Descending Thoracic Aortic Aneurysm
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Murine Surgical Model of Topical Elastase Induced Descending Thoracic Aortic Aneurysm

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Thoracic aortic pseudoaneurysm: Inside its pathophysiology.

Antonio Manenti1, Luca Roncati2, Lorena Sorrentino1

  • 1Departments of Surgery, University of Modena and Reggio Emilia, Italy.

Vascular
|August 9, 2024
PubMed
Summary
This summary is machine-generated.

Thoracic aortic pseudoaneurysms result from trauma, aortitis, or aortic conditions. Advanced imaging like CT and MRI now aids diagnosis and surgical planning for this rare condition.

Keywords:
Thoracic aortic pseudoaneurysmaortic aneurysm complicationaortic intraparietal hematomaaortic isthmus injurypenetrating aortic ulcer

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Area of Science:

  • Cardiovascular Surgery
  • Vascular Medicine
  • Radiology

Background:

  • Thoracic aortic pseudoaneurysms are rare, presenting acutely or chronically.
  • They can arise from blunt trauma, aortitis, penetrating ulcers, hematomas, aneurysms, or grafts, often with underlying atherosclerosis.
  • Understanding their pathophysiology is crucial for effective management.

Purpose of the Study:

  • To investigate the pathophysiology of thoracic aortic pseudoaneurysms.
  • To identify the key structural components and etiological factors.
  • To correlate findings with clinical presentation and diagnostic modalities.

Main Methods:

  • A retrospective, inductive approach was used due to the condition's rarity.
  • Clinical, radiological, and histopathological data were collected and analyzed.
  • A deductive reinterpretation process validated the findings.

Main Results:

  • Identified three core constituents: a cavity, a single blood entry port, and a pseudocapsule.
  • Chronic causes involve degenerative aortic pathology (intima/media, elastic fibers, smooth muscle cells), potentially progressing from ulcers or hematomas.
  • Acute onset can result from aortitis or direct aortic injury.

Conclusions:

  • Diagnosis of thoracic aortic pseudoaneurysm is facilitated by advanced imaging (3D CT, MRI angiography).
  • These tools also improve the clarity of surgical indications.
  • Improved diagnostic capabilities enhance patient management strategies.