Non-traumatic abdominal ecchymosis of the abdominal wall and flanks (Grey Turner, Cullen and Stabler); scrotum (Bryant) and upper thigh (Fox) as clues to potentially serious causes of abdominal pathology.
Fox's sign: non-traumatic ecchymosis over the upper outer aspect of the thigh secondary to abdominal haemorrhage. First described by English surgeon John Adrian Fox in 1966