Pulmonary hypertension is classified into five groups based on underlying pathophysiology; imaging plays a central role in the detection, classification, prognostication, and management of pulmonary hypertension.
Cardiac myxomas are the second most common benign cardiac tumor in adults. Most arise from the interatrial septum in the left atrium. Although most patients present with cardiac or embolic symptoms, some lesions are detected incidentally at imaging performed for unrelated indications. This case report describes the incidental discovery of a right atrial mass partially visualized at CT of the abdomen and pelvis during workup for cholecystitis. Subsequent multimodality imaging demonstrated a right atrial mass arising from the crista terminalis, which was confirmed to be a myxoma at pathologic examination. This case highlights an atypical origin and location of a common cardiac tumor incidentally detected at abdominal imaging. Keywords: Pathology, Neoplasms-Primary, Right Atrium, Heart, Cardiac, Ultrasound, MR Imaging, CT Angiography, CT © RSNA, 2026
Although left atrial appendage (LAA) filling defects are common on CT angiography for transcatheter aortic valve replacement planning, true LAA thrombus is rarely detected with late-phase imaging.
Hyperpolarized xenon 129 MRI revealed gas-exchange abnormalities in participants with cystic fibrosis compared with control participants; these abnormalities were not correlated with spirometry but persisted despite cystic fibrosis transmembrane conductance regulator modulator therapy.
Postcontrast liver attenuation measured with coronary CT angiography demonstrated promising diagnostic performance for opportunistic identification of moderate-to-severe hepatic steatosis using tube potential–specific thresholds and was associated with coronary artery Agatston score.
