Abstract
Article: Thinking Outside of the Sector: Detection of a Mediastinal Thymoma in Transthoracic Echocardiography
Authors: Eric Kallstrom, BA, RDCS, Philip Kovoor, MD, Joel Kovoor, Joshua Kovoor, Don Le, DO, Sahil Bakshi, DO
Category: Cardiac (Adult) [AE]
Credit: 1.0 SDMS CME Credit
Objectives: After studying the article entitled “Thinking Outside of the Sector: Detection of a Mediastinal Thymoma in Transthoracic Echocardiography,” you will be able to:
Describe the inherent limitations of transthoracic echocardiography for imaging structures in the mediastinum
Determine the complementary roles of echocardiography and computed tomography in evaluating the mediastinum
Describe the sonographic features of a mediastinal thymoma
The thymus is a central part of the Lymphatic system Nervous system Cardiovascular system Musculoskeletal system
Mediastinal masses may be connected with all but the Pleura Pericardium Thymus Diaphragm
A limiting factor of transthoracic echocardiography in evaluating the mediastinum is Low frame rate Low dynamic range Low operating frequency Low wall filters
A second limiting factor of transthoracic echocardiography in evaluating the mediastinum is The inability to achieve a suprasternal view It is often outside the standard of practice of interpreting physicians Interference from cardiac structures Poor color Doppler imaging in the near field
Typically, a thymoma will be located in The posterior mediastinum The anterior mediastinum The left lateral chest The right lateral chest
A function of the thymus is Production of white cells Production of B-cells Production of T-lymphocytes Production of red cells
Thymomas account for approximately _____ of all tumors. 0.5% 1.0% 2.0% 5.0%
Thymomas account for approximately _____ of anterior mediastinum tumors. 0.5% 5% 10% 20%
A Masaoka stage II thymoma implies No transcapsular invasion Microscopic transcapsular invasion Visible spread throughout the mediastinum Significant metastatic disease
R0 resection of a thymoma implies Visible residual tumor Macroscopic residual tumor Microscopic residual tumor No residual tumor
Footnotes