👉 Empyema, in medicine, is a rare but serious condition that occurs when blood vessels become blocked or narrowed due to an inflammatory process. This can lead to blockages in small blood vessels called arterioles, which are responsible for carrying oxygenated blood from the heart to various parts of the body and waste products out of the body. The cause of empyema is often caused by inflammation of the blood vessels, but other factors such as blood clots, trauma, or infection can also