This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
Cullen's sign 
Select and explain. 
A. Bluish disclolouration of the flanks, B. Bluish discolouration in the umbilicus, C. Migratory thrombophelebitis, D. Subcutaneous fat necrosis
B: Bluish discolouration in the umbilicus
Answer: B: Bluish discolouration in the umbilicus 
Explanation: Cullen's sign seen in acute pancreatitis due to enzymes seeping through falciform ligament and causing discolouration around umbilicus SRB,5th,683.