Battle's sign is a physical finding that indicates a basilar skull fracture. Blood collects behind the ear near the mastoid process. Cullen’s sign is superficial edema and bruising around the umbilicus. It can indicate many things, including ectopic pregnancy. Grey Turner sign is atraumatic abdominal/flank bruising, which may be associated with pancreatitis. Beau's lines are found on the fingernails or toenails, often secondary to trauma.