Imaging sarcomas of the great vessels and heart
Emily C Bendel1, Joseph J Maleszewski, Philip A Araoz
1Department of Diagnostic Radiology, Mayo Clinic Rochester, Rochester, MN 55905, USA.
Insights
Primary sarcomas of major blood vessels and the heart are rare. These include aortic, pulmonary artery, vena cava, and heart sarcomas, often misdiagnosed due to similar appearances with thrombus or embolism.
Area of Science:
- Oncology
- Cardiovascular Pathology
- Surgical Oncology
Background:
- Primary sarcomas of the aorta, pulmonary artery, superior vena cava (SVC), inferior vena cava (IVC), and heart are exceptionally rare. These neoplasms present unique diagnostic challenges due to their location and potential for mimicking other conditions.
- Aortic sarcomas can be luminal or mural, with luminal types frequently misdiagnosed as aortic thrombus.
- Pulmonary artery sarcomas often present with symptoms and imaging findings similar to pulmonary embolism, complicating early diagnosis.
Purpose of the Study:
- To review the characteristics and diagnostic considerations of primary sarcomas affecting the aorta, pulmonary artery, vena cavae, and heart.
- To highlight the common misdiagnoses associated with these rare vascular and cardiac tumors.
- To provide an overview of the typical presentation and imaging features of these neoplasms.
Main Methods:
- Literature review of primary sarcomas of the aorta, pulmonary artery, SVC, IVC, and heart.
- Analysis of diagnostic challenges and common misinterpretations based on clinical and imaging data.
- Summarization of key pathological and radiological features.
Main Results:
- Luminal aortic sarcomas are often misdiagnosed as thrombus, while pulmonary artery sarcomas are frequently mistaken for pulmonary embolism.
- Vena caval sarcomas manifest as intraluminal or extraluminal masses, with leiomyosarcomas being the most common type in the IVC.
- Primary cardiac sarcomas are rare and typically present as aggressive, heterogeneous masses.
Conclusions:
- Accurate and timely diagnosis of primary vascular and cardiac sarcomas is crucial, requiring high clinical suspicion to differentiate them from more common conditions like thrombus or embolism.
- Understanding the specific imaging and clinical presentations of these rare tumors is essential for appropriate management.
- Further research into the early detection and treatment of these uncommon neoplasms is warranted.
Abstract:
Primary sarcomas of the aorta, pulmonary artery, superior vena cava, inferior vena cava, and the heart are rare neoplasms. Aortic sarcomas are broadly categorized as either primarily luminal or primarily mural, with luminal sarcomas more likely to be misdiagnosed as thrombus. Pulmonary artery sarcomas are often mistaken for pulmonary embolism both clinically and at imaging. Vena caval sarcomas appear as intraluminal or extraluminal masses connecting to or filling the veins. The most common are leiomyosarcomas of the inferior vena cava. Primary sarcomas of the heart are rare and usually appear as heterogeneous aggressive masses.
Related Concept Videos
01:19Imaging Studies VII: Vascular Imaging
01:20Imaging Studies for Cardiovascular System III: X-Ray
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
01:28Imaging Studies for Cardiovascular System V: CT
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
01:21Imaging Studies for Cardiovascular System IV: CMRI
01:17Imaging Studies for Cardiovascular System I:Echocardiography
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...