POMC and inappropriate ADH syndrome: 10.9 % of patients showed paraneoplastic syndromes, including 1 case of paraneoplastic neuropathy, 1 case of disseminated intravasal coagulation, 1 case of ectopic ACTH (adrenocorticotropic hormone) production and 2 cases of SIADH (syndrome of inappropriate antidiuretic hormone secretion).