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': 'Which of the following is not seen in sickle cell disease \nSelect and explain. \nA. Gamma Gandy bodies, B. Moderate to massive spleenomegaly, C. Fish mouth vertebra, D. Decreased ESR', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Autosplenectomy occurs in sickle cell disease, not spleenomegaly.', 'role': 'assistant'}]