An antheroma is a type of lesion found in atherosclerosis, characterized by the accumulation of lipids, cholesterol, and cellular debris within the arterial wall. This buildup forms a plaque that can narrow blood vessels, potentially leading to cardiovascular issues such as heart attacks or strokes. Antheromas can vary in size and are often associated with inflammation and damage to the arterial lining. Regular monitoring and management of risk factors, such as high cholesterol and hypertension, are crucial for preventing their development.