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The following 3 cases further indicate that one cannot rely entirely on negative results in tests for fasting blood sugar or in examination of the urine for sugar to rule out diabetes. Resort should be had more often to the glucose tolerance test in cases of generalized dermatitis for which no evident cause is found, especially when vulvar itching is complained of as well.
The chief complaints in the cases to be described were all similar, i. e., a generalized pruritic, excoriated, lichenified dermatitis with normal results on routine tests of blood and urine. All the patients had been treated by physicians over varying periods but with no relief until an underlying diabetes was determined as the cause and proper therapy instituted.
REPORT OF CASES
Case 1.—Mrs. R. A., aged 72, had as chief complaints generalized pruritus and dermatitis of three years' duration. Many etiologic diagnoses were made, including senile
ZOLL H. IMPORTANCE OF GLUCOSE TOLERANCE TEST IN GENERALIZED PRURITUS. Arch Derm Syphilol. 1950;61(3):491–492. doi:10.1001/archderm.1950.01530100135022
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