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Related Concept Videos

Aneurysm I: Introduction01:30

Aneurysm I: Introduction

An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
Abdominal Aorta01:25

Abdominal Aorta

Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
Anastomoses01:19

Anastomoses

In human anatomy, anastomosis refers to a connection or opening between two things, particularly between blood vessels or other tubular structures. The term is derived from the Greek term 'anastomosis,' which means 'outlet' or 'opening.' This natural network of connections plays a critical role in the survival and functionality of the human body.
Anastomoses can be formed at arterial, venous, and lymphatic vessels.
Arterial Anastomosis: These occur between arteries. They are most common in...
Esophageal Varices-I: Introduction01:24

Esophageal Varices-I: Introduction

Esophageal varices are dilated, tortuous veins which are found mainly in the submucosa of the lower esophagus but which may also appear higher up or extend into the stomach. They develop due to increased pressure in the portal venous system, often as a result of liver cirrhosis. This condition scars and damages the liver, impeding normal blood flow through the portal vein. To compensate, blood seeks alternative pathways, forming fragile new vessels (varices) in the esophagus and stomach. These...

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Related Experiment Video

Updated: May 13, 2026

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta
07:12

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

Published on: September 8, 2023

Anomalous splenic artery aneurysm.

Sydney S N Wong1, T F Lindsay, G Roche-Nagle

  • 1Department of Vascular Surgery, Toronto General Hospital, 200 Elizabeth Street, Toronto, ON, Canada M5G 2C4. sydney.wong@utoronto.ca

Vascular
|March 26, 2013
PubMed
Summary
This summary is machine-generated.

Splenic artery aneurysms (SAAs) originating from the superior mesenteric artery (SMA) are rare. This case study details the successful surgical resection and spleen preservation for a 2.6-cm SAA in a patient with a splenomesenteric trunk.

Related Experiment Videos

Last Updated: May 13, 2026

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta
07:12

An Approach to Point-Of-Care Ultrasound Evaluation of the Abdominal Aorta

Published on: September 8, 2023

Area of Science:

  • Vascular Surgery
  • Abdominal Imaging
  • Anatomical Variations

Background:

  • Splenic artery aneurysms (SAAs) are the most common visceral artery aneurysms.
  • A splenomesenteric trunk, where the splenic artery originates from the superior mesenteric artery (SMA), is a rare anatomical variation, occurring in less than 1% of the population.
  • SAAs associated with a splenomesenteric trunk are exceptionally uncommon.

Observation:

  • A 40-year-old woman presented with a 2.6-cm aneurysm of the splenic artery.
  • The splenic artery exhibited an anomalous origin from the superior mesenteric artery, indicative of a splenomesenteric trunk.
  • The aneurysm was identified and characterized, necessitating surgical intervention.

Findings:

  • Surgical management of the splenic artery aneurysm was successfully performed.
  • The treatment involved surgical resection of the aneurysm.
  • Preservation of the spleen was achieved during the surgical procedure.

Implications:

  • This case highlights the importance of recognizing rare anatomical variations like the splenomesenteric trunk when evaluating splenic artery aneurysms.
  • Successful surgical management, including spleen preservation, is feasible for these rare aneurysms.
  • The findings contribute to the understanding and management strategies for aneurysms arising from anomalous vascular origins.