<prompt> Cullens sign -Bluish disclolouration of the flanksBluish disclolouration of the flanksMigratory thrombophelebitisSubcutaneous fat necrosis  <response>: Ans. is b i.e., Bluish discolouration in the umbilicus Cullens sign - Bluish discoloration at the umbilicus Grey Turners sign - Bluish discoloration at the flanks Ct. Mnemonic: GF Girl Friend Cullens -- Umbilicus Grey Turners -- Flanks 