Usefulness of FDG-PET in detecting an ADH-secreting tumor: a case report.

We report a case of a 41-year-old woman who was diagnosed as having the syndrome of inappropriate secretion of ADH (SIADH). There was no evidence of any disorders of the central nervous system, lung diseases, or drugs causing SIADH. Positron emission tomography (PET) using (18)F-fluorodeoxyglucose (FDG) was performed and indicated a tumor of the uterine cervix.