[Selective parathormone determination for localizing parathyroid tumors]

A method for localization of parathyroid tumors by selective venous blood sampling and measurement of parathyroid hormone is reported. The blood samples are taken after catheterization of the femoral vein from the veins of the neck and the thyroid gland. Parathyroid hormone levels are measured by radioimmunoassay. By this method localisation of 13 parathyroid adenomas in 15 patients was achieved. Parathyroid venous sampling seems to be more effective than any other localisation method used.