What is the deformity characterized by blood collecting in the outer ear due to trauma?

The deformity characterized by blood collecting in the outer ear due to trauma is known as cauliflower ear. This condition arises when blood accumulates in the outer ear, often as a result of direct trauma, such as in contact sports like wrestling or boxing. If not properly treated, the accumulation of blood can lead to fibrosis and a change in the ear's shape, resulting in a lumpy or irregular appearance that resembles a cauliflower, hence the name. Although ear hematoma also refers to the condition of blood collecting in the ear, it doesn't capture the long-term deformity and aesthetic change that occurs without intervention, which is specifically what cauliflower ear describes.