2D and 3D echocardiography are useful for identifying rare anatomical variants like a crista terminalis bridge, preventing misdiagnosis of right atrial masses.
Echocardiography may differentiate crista terminalis variants from atrial masses; hypothesis-generating and should not yet change practice.
Prominent crista terminalis is a variant of normal heart anatomy mimicking right atrial mass-like tumour, thrombus, or vegetation. The case report depicts a rare kind of this structure that constitutes a thick muscular bridge in the right atrium. Detection by 2D and 3D echocardiography can avoid further useless investigation.
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D’Amato et al. (2008) studied this question.
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