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An unusual presentation of prominent crista terminalis mimicking a right atrial mass: a case report.

A new interesting article has been published in BMC Cardiovasc Disord. 2018 Nov 7;18(1):210. doi: 10.1186/s12872-018-0925-y. and titled:

An unusual presentation of prominent crista terminalis mimicking a right atrial mass: a case report.

Authors of this article are:

Wang J, Wang G, Bi X, Zhang R, Liu C.

A summary of the article is shown below:

BACKGROUND: The crista terminalis is a variation of normal anatomical structure within the right atrium which may be misdiagnosed with an abnormal atrial mass normally visualized in the standard views on the transthoracic echocardiogram.CASE PRESENTATION: In this case presentation, we demonstrated a rare case report describing the accidental discovery of a right atrial mass-like structure in a 54-year old Asian man without physical discomfort during an echocardiographic examination. These findings naturally caused some concern as the differential diagnosis such as right atrial myxoma or thrombus and further examination were organized. The subsequent positron emission tomography/magnetic resonance imaging (PET/MRI) differentiated a true right atrial mass from a strip extending into the atrium in accordance with prominent crista terminalis.CONCLUSION: A preferable understanding of the complex anatomy and PET/MRI appearance of a prominent crista terminalis will minimize the misdiagnosis of this structure and avoiding unnecessary anxiety and more invasive examinations.

Check out the article’s website on Pubmed for more information:



This article is a good source of information and a good way to become familiar with topics such as:

Crista terminalis;Echocardiogram;PET/MRI;Right atrial mass

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