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: Pathology
[{'content': 'Fat necrosis occurs in? \nSelect and explain. \nA. Omentum, B. Brain, C. Heart, D. Kidney', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Heart & kidney - coagulative necrosis\nBrain - liquefactive necrosis\n\nFat necrosis\n\nFat necrosis is of two types:-\n\n1) Enzymatic fat necrosis\n\nIt is the most common type and is due to the action of lipase on adipose tissue. The most common cause\xa0is acute pancreatitis. The common sites of fat necrosis are adipose tissue contiguous to\xa0the pancreas(retroperitoneal fat); anterior mediastinum, bone marrow, omentum and abdominal fat\n\n2) Traumatic (non-enzymatic) fat necrosis\n\nIt occurs due to trauma in the subcutaneous tissue of breast, thigh and abdomen', 'role': 'assistant'}]