What condition presents with bruises behind the earlobe?

The presence of bruises behind the earlobe is specifically associated with Battle’s sign, which indicates a skull fracture, particularly of the basilar skull. This sign occurs due to bleeding that tracks down the neck and behind the ear, creating a bruise in that area. In the context of trauma, this finding is a critical indicator that may suggest significant head injury.

Raccoon eyes, while also related to bruising, refer to the periorbital area around the eyes, typically due to similar types of trauma, but are not located behind the ear. Pneumonia does not cause bruising; it is a respiratory condition characterized by inflammation of the lung tissue. Pulmonary embolism, on the other hand, involves a blockage in the pulmonary arteries and may present with symptoms like shortness of breath or chest pain, but does not cause bruising in specific areas like behind the earlobe. Understanding the specific presentations of these signs helps in accurately diagnosing conditions related to head trauma.