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
[{'content': 'All are true about thymoma except: \nSelect and explain. \nA. MC tumor in anterior mediastinum, B. Treatment is thymectomy, C. Symptomatic cases present as endocrine abnormalities, D. May be associated with myasthenia gravis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. Symptomatic cases present as endocrine abnormalitiesCharachteristic SyndromesMyaesthenia Gravis (most common)Acquired Hypogammaglobulinemia (10%)Pure Red Cell Aplasiac', 'role': 'assistant'}]