You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All are true about the effect of thymectomy, EXCEPT: and explain in detail?
FACTS about thymectomy: Patients with myasthenia gravis have a ove thymoma is present in 10-15% of patients The course of myasthenia gravis is not significantly different in patients with or without thymoma. Thymectomy produces at least some symptomatic improvement in 65% of patients with myasthenia gravis. Thymoma patients with myasthenia gravis had a better long-term survival from thymoma resection Thymectomy results in the resolution of pure red cell aplasia in 30% of patients. Hypogammaglobulinemia rarely responds to thymectomy. Ref: Harrison, E-18, chapter e-20.