A CASE OF RENAL GLYCOSURIA

In defining renal glycosuria, Strouse1gives four points of differentiation from diabetes mellitus: (1) glycosuria without hyperglycemia; (2) glycosuria almost entirely independent of carbohydrate intake; (3) absence of diabetic symptoms, and (4) no subsequent development of diabetes mellitus. Paullin2has added a fifth characteristic in this condition, that sugar shall be constantly present in the urine. That renal glycosuria shall not later become diabetes mellitus necessitates a prolonged observation of such patients, and this is the reason for reporting a case in which glycosuria was discovered eighteen years ago, the patient having been employed in a hospital for the sake of supervision for the last nine years. Bailey3has reported a case in which glycosuria has been known for ten years, and says, "The patient's history points strongly to this being a congenital condition." Strouse has observed a case for eight years, Garrod4and Bonninger5