RT Book, Section A1 Barlotta, Kevin S. A1 Stack, Lawrence B. A1 Knoop, Kevin J. A2 Knoop, Kevin J. A2 Stack, Lawrence B. A2 Storrow, Alan B. A2 Thurman, R. Jason SR Print(0) ID 1181040908 T1 Grey Turner Sign and Cullen Sign T2 The Atlas of Emergency Medicine, 5e YR 2021 FD 2021 PB McGraw-Hill PP New York, NY SN 9781260134940 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181040908 RD 2024/04/16 AB Bluish to purplish periumbilical discoloration (Cullen sign) and flank discoloration (Grey Turner sign) represent retroperitoneal hemorrhage that has dissected through fascial planes to the skin. Retroperitoneal blood may also extravasate into the perineum, causing a scrotal hematoma or inguinal mass. This hemorrhage may represent a hemodynamically significant bleed.