Which imaging sign corresponds with pericarditis?

The "money bag sign" is an imaging characteristic associated with pericarditis, particularly in the context of a pericardial effusion. This sign typically presents as a rounded, enlarged heart silhouette seen on chest X-rays, which resembles a bag of money. In pericarditis, the inflammation can lead to fluid accumulation in the pericardial space, resulting in this characteristic appearance. It indicates that the heart is surrounded by excess fluid, which alters its normal contour and can be a critical aspect of diagnosing pericarditis.

In contrast, the other signs are related to different conditions. For instance, the air bronchogram is an imaging sign often associated with lung pathology, like pneumonia, indicating that air-filled bronchi are made visible by the surrounding opacified alveolar spaces. The snowman sign is classically seen in cases of total anomalous pulmonary venous return (TAPVR), specifically the supracardiac type. The jug handle sign refers to a specific appearance of the gallbladder or the kidney in imaging, which isn't related to pericarditis. Understanding these distinctions enhances the ability to interpret imaging findings accurately in pediatric practice.