👉 Hematopericardium is a condition in which blood vessels and tissues within the heart become inflamed, causing them to swell and thicken. This can lead to a variety of symptoms depending on the severity of the condition. In some cases, it may cause pain or discomfort in the chest, throat, neck, back, or abdomen. It's important to seek medical attention if you experience any of these symptoms as they can indicate an underlying health issue.