Grey-Turner's sign

Grey-Turner's sign refers to bruising of the flanks.

This sign takes 24-48 hours to appear and predicts a severe attack of acute pancreatitis, with mortality rising from 8-10% to 40%.

It may be accompanied by Cullen's sign.

George Grey Turner was a British surgeon.

Differential Diagnosis
Causes include:
 * retroperitoneal bleeding or a retroperitoneal hematoma
 * acute pancreatitis, whereby methemalbumin formed from digested blood tracks subcutaneously around the abdomen from the inflamed pancreas
 * blunt abdominal trauma
 * ruptured abdominal aortic aneurysm.
 * Ruptured/ hemorrhagic ectopic pregnancy.
 * spontaneous bleeding secondary to coagulopathy (congenital or acquired)