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Case 16 (Antonioli)

Submitted are two CD3 immunostains of duodenal mucosa from two patients (51 y.o. female and 27 y.o. male, repectively) with iron-deficiency anemia and guaiac-negative stools. On the H-and-E stains, the duodenal architecture was normal, and there was no increased inflammation in the lamina propria.