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: Medicine
All of the following conditions are associated with thymoma except? 
Select and explain. 
A. Myasthenia gravis, B. Pemphigus foliaceus, C. Pancytopenia, D. Hypergamma globulinemia
D: Hypergamma globulinemia
Answer: D: Hypergamma globulinemia 
Explanation: Thymoma is associated with B cell deficiency and hypogamma globulinemia. Other conditions associated with thymoma are myasthenia gravis, autoimmune hemolytic or aplastic anemia, pancytopenia, thrombotic thrombocytopenic purpura, pemphigus foliaceus, sjogren's syndrome, polymyositis.