Mark C. Wakeman, Peter A. Slavin, Ronaldo T. Gismondi¹* Abstract A 6-year-old white girl with a longstanding history of severe constipation who was referred for suspected Irritable Bowel Syndrome. Instead, serologies showed all three of these tests to be markedly positive for tissue transglutaminase. IgA endomysial antibody was also positive, though testing of total immunoglobulin A […]