Related Experiment Videos
Prominent crista terminalis appearing as a right atrial mass on transthoracic echocardiogram
Jennifer R Pharr1, Michael B West, Fred M Kusumoto
1Lovelace Medical Center, Albequerque, 87108, USA.
Insights
The prominent crista terminalis can mimic a right atrial mass on echocardiography. Recognizing this normal anatomical structure prevents misdiagnosis in cardiac imaging.
Area of Science:
- Cardiology
- Cardiac Anatomy
- Echocardiography
Background:
- The crista terminalis is a normal fibromuscular ridge in the right atrium.
- It forms at the junction of the sinus venosus and the primitive right atrium.
- Accurate identification is crucial for correct cardiac diagnosis.
Observation:
- Transthoracic echocardiography (TTE) can suggest a right atrial mass.
- This finding can be mistaken for a pathological condition.
- Further imaging is often required for definitive diagnosis.
Findings:
- Transesophageal echocardiography (TEE) correctly identified the suspected mass as a prominent crista terminalis.
- The echogenicity and location are key differentiating features.
- This highlights the importance of detailed anatomical knowledge.
Implications:
- Understanding crista terminalis anatomy minimizes misdiagnosis of right atrial masses.
- Improved echocardiographic interpretation enhances patient care.
- This knowledge is vital for cardiologists and sonographers.
Abstract:
The crista terminalis is a fibromuscular ridge formed by the junction of the sinus venosus and primitive right atrium. In these case reports, transthoracic echocardiography suggested the presence of a right atrial mass. However, subsequent transesophageal echocardiography revealed that the "right atrial mass" was actually a prominent crista terminalis. An understanding of the anatomy and the echocardiographic appearance of a prominent crista terminalis will minimize the misdiagnosis of this structure.