The Zero Calcium Score Paradox.

Our study presents a case of angina with a zero calcium score yet severe coronary stenosis from noncalcified plaque. We highlight the limitation of otherwise prognostically powerful coronary calcium score as a singular predictive tool especially when used in symptomatic patients.

A Rare Case of New-Onset Atrial Fibrillation Presenting as Biatrial Inflammation Seen on 18F-FDG-PET.

Isolated atrial myocarditis, a rare clinical entity, is presented in this case report as the diagnosis in a patient with new-onset atrial fibrillation. Our findings emphasize the potential for atrial arrhythmias and their unusual presentation; the role of multimodal imaging, especially 18F-FDG-PET/CT, in diagnosis; and considerations for long-term treatment strategies.