The condition is known as Grey Turner sign.
Ecchymosis refers to bruise or discoloration. Flank refers to area between the last rib and hip on the side of body. Now, ecchymosis at flank is indicative of retro peritoneal hemorrhage. Retro peritoneal refers to peritoneum and occurrence of hemorrhage states bleeding which subsequently causes accumulation of blood. These signs are Grey Turner's sign and further diagnose the attack of acute pancreatitis.
Pancreatitis is the death of part of pancreas which is accompanied by release of pancreatic fluid and blood in the abdomen. The consequence is decrease in blood pressure and blood volume. Symptoms include vomiting, abdominal pain, nausea, fever etc. Decrease in blood volume and vomiting results in hypovolemic shock.
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