Case Report
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Jun 6, 2021; 9(16): 3960-3965
Published online Jun 6, 2021. doi: 10.12998/wjcc.v9.i16.3960
Undifferentiated intimal sarcoma of the pulmonary artery: A case report
Xin Li, Liu Hong, Xiao-Yan Huo
Xin Li, Liu Hong, Xiao-Yan Huo, Department of Ultrasonography, Chinese People's Liberation Army General Hospital-Sixth Medical Center, Beijing 100048, China
Author contributions: Li X and Huo XY contributed to the echocardiographic consultation and manuscript writing and revision; Liu H contributed to the pathological analysis and literature research; all authors read and approved the final manuscript.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest to report.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Xin Li, PhD, Department of Ultrasonography, Chinese People's Liberation Army General Hospital-Sixth Medical Center, No. 6 Fucheng Road, Haidian District, Beijing 100048, China. lixin_dp@163.com
Received: December 2, 2020
Peer-review started: December 2, 2020
First decision: January 29, 2021
Revised: February 16, 2021
Accepted: March 29, 2021
Article in press: March 29, 2021
Published online: June 6, 2021
Core Tip

Core Tip: Echocardiography has a high sensitivity in the diagnosis of pulmonary artery space-occupying lesions. The misdiagnosis of pulmonary arterial sarcoma (PAS) by echocardiography is attributed to insufficient knowledge of this disease. If the following four features are detected, a diagnosis of PAS should be considered: (1) A single pulmonary arterial mass involving the right ventricular outflow tract or pulmonary valve; (2) varying degrees of pulmonary stenosis detected based on ultrasonic measurements; (3) the mass can move slightly and blood supply can be seen inside; and (4) use of ultrasonography of the lower extremity and inferior vena cava to exclude thrombus.