PMC10331331_01
Biopsy image (H&E stain x40) of the duodenum showing marked villous atrophy.
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The duodenal biopsy showed flattened duodenal mucosal epithelium due to marked villous atrophy, hypertrophic crypts, and increased intraepithelial lymphocytes >=30/100 epithelial cells (Figures 1 and 2), which align with the characteristics associated with stage 3b of the modified Marsh classification.  
The biopsy image (H&E stain x100) of the duodenum demonstrates marked villous atrophy, hypertrophic crypts, and increased intraepithelial lymphocytes, consistent with stage 3b of the modified Marsh classification.
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The duodenal biopsy showed flattened duodenal mucosal epithelium due to marked villous atrophy, hypertrophic crypts, and increased intraepithelial lymphocytes >=30/100 epithelial cells (Figures 1 and 2), which align with the characteristics associated with stage 3b of the modified Marsh classification.  
Longitudinal course of main laboratory parameters over time.
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After a span of 48 weeks, all blood tests returned to normal levels, and the anti-TG antibodies showed normal values (Figure 3).