<prompt> All of the following conditions cause SIADH, exceptLung abscessThymomaCa pancreasInterstitial nephritis  <response>: Lung abcess, thymoma and pancreatic cancer are all associated with SIADH. SIADH is a state of pathologic hormone excess in the presence of hyponatremia and hypo osmolality. Laboratory features of SIADH includes reduced plasma osmolality, persistent urinary secretion of sodium 20mEqL, and inappropriately high urine osmolality. 