Enlargement of Parotid Gland Due to Sarcoidosis.

Case 1 was kindly referred by Mr. C. R. Berkin of the Westwood Hospital, Beverley; Case 2 by Professor S. J. Hartfall; and Case 3 by Dr. E. C. Allibone of the Leeds General Infirmary. I am grateful to Sister Thwaite, S/N Whan, and the dietetic, nursing, and technical staff of the metabolic unit for continual co-operation, without which studies such as these would be impossible. Miss V. Grayson and Mr. D. Newton carried out all the calcium and phosphorus measurements. Dr. F. W. Heaton and Dr. A. Hodgkinson of the urological research laboratories kindly carried out the magnesium measurements and the renal tubular reabsorption of phosphate respectively.