Embolization of Metastatic Neuroendocrine Tumor Resulting in Clinical Manifestations of Syndrome of Inappropriate Secretion of Antidiuretic Hormone

Complications after hepatic artery embolization are usually minor and transient. This report describes a patient with a pancreatic neuroendocrine tumor with hepatic metastases who repeatedly developed clinical findings of syndrome of inappropriate secretion of antidiuretic hormone with hyponatremia (sodium < 130 mEq/L), low plasma osmolarity (< 275 mOsm/kg), and high urine osmolarity (> 500 mOsm/kg) after every session of hepatic artery embolization.