Management of the hypercalcaemia of malignancy by peritoneal dialysis

A case is reported which illustrates the use of peritoneal dialysis in the treatment of hypercalcaemia due to metastatic carcinoma of the breast. Control of hypercalcaemia was rapid and sustained. Removal of calcium did not completely explain the results observed. The possibility is discussed that treatment temporarily suppressed tumour growth or removed some dialysable hypercalcaemic or tumour growth factor.