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We have a number of cases of pentosuria on record in which patients were excreting penatomic sugar, but had not glycosuria, though their urine responded to the ordinary tests for this.

Obesity and Glycosuria.—Gouty individuals often become obese and show evidences of glycosuria.

When the sugar excretion has been reduced to its lowest point, and maintained there for some time, a certain amount of carbohydrate may be cautiously allowed, the consequent effect on the glycosuria being estimated.

He finds a glycosuria and looks for its cause.

No one surely would deny the diagnostic value of glycosuria for diabetes, because in conditions of inanition, for instance, the sugar of a diabetic may completely vanish, although the disease continues.