This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Conditions associated with thymoma are all except? 
Select and explain. 
A. Myasthenia gravis, B. Cushing's syndrome, C. SIADH, D. Hypogammaglobulinemia
C: SIADH
Answer: C: SIADH 
Explanation: SIADH ( Syndrome of Inappropriate ADH secretion) is not seen associated with thymomas. Ref :Harrison's Principles of Internal Medicine 21st ed