Prominent crista terminalis mimicking a right atrial mass: A case report and brief review of the literature

Figures

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  Fig. 1. Figure 1: Transthoracic echocardiogram. Transthoracic echocardiogram was performed as a part of preoperative workup prior to surgery. Four-chamber transthoracic echocardiogram shows a prominent crista terminalis (arrow) in the right atrium, which was initially reported as indeterminate, and concerning for malignancy. Further evaluation with CT or MRI cardiac morphology was recommended

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  Fig. 2. Figure 2: Cardiac MRI without contrast. Further, evaluation with MRI cardiac morphology was performed. The study was limited due to motion and refusal to administer contrast. TRUFI (true fast imaging with steady-state free precession) axial images in four-chamber view demonstrates a prominent right atrial intracavitary lesion

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  Fig. 3. Figure 3: PET/CT examination. MRI cardiac morphology when compared to prior CT component of the PET/CT examination showed classic characteristic findings of crista terminalis. Axial (3A) and Coronal (3B) images show crista terminalis along the lateral wall of the Right atrium. Coronal image shows the complete craniocaudal extent of the crista terminalis (arrow)

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  Fig. 4. Figure 4: PET/CT examination: MRI cardiac morphology when compared to prior PET/CT had classic characteristic findings of crista terminalis. Axial (4A) and Coronal (4B) images show crista terminalis along the lateral wall of the Right atrium. Coronal image shows the complete craniocaudal extent of the crista terminalis (arrow). No abnormal metabolic activity was appreciated on the PET/CT component of the examination