Lipomatus hypertrophy of the atrial septum and prominent crista terminalis appearing as a right atrial mass on transthorasic echocardiogram

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In these case reports, transthoracic echocardiography suggested the presence of a right atrial mass. However, subsequent transoesophageal echocardiography revealed that the 'right atrial mass' was actually a lipomatous hypertrophied atrial septum in combination with a prominent crista terminalis. An understanding of the anatomy and the echocardiographic appearance of a lipomatous hypertrophied atrial septum appearing with a prominent crista terminalis will minimize the misdiagnosis of these structures.


Cardiovascular Diseases | Cardiovascular System | Diagnosis | Medicine and Health Sciences


Aged; Cardiomyopathy, Hypertrophic/complications; Cardiomyopathy, Hypertrophic/ultrasonography; Cysts/complications; Cysts/ultrasonography; Cysts (Pathology); iagnosis; Diagnosis, Differential; Diagnostic ultrasonic imaging; Echocardiography; Echocardiography, Transesophageal; Echinococcosis; Female; Heart—Diseases; Heart—Hypertrophy; Heart Atria; Heart Diseases/complications; Heart Diseases/ultrasonography; Heart Neoplasms/complications; Heart Neoplasms/ultrasonography; Heart septum; Humans; Lipoma/complications; Lipoma/ultrasonography; Middle Aged; Myocardium—Diseases; Older people; Transesophageal echocardiography; Women

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