This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Cullen's sign - 
Select and explain. 
A. Bluish disclolouration of the flanks, B. Bluish disclolouration of the flanks, C. Migratory thrombophelebitis, D. Subcutaneous fat necrosis
B: Bluish disclolouration of the flanks
Answer: B: Bluish disclolouration of the flanks 
Explanation: Ans. is 'b' i.e., Bluish discolouration in the umbilicus Cullen's sign - Bluish discoloration at the umbilicus Grey Turner's sign - Bluish discoloration at the flanks Ct. Mnemonic: GF (Girl Friend) Cullens --> Umbilicus Grey Turner's --> Flanks