Proximal Limb Weakness in a Patient with Celiac Disease: Copper Deficiency, Gluten Sensitivity, or Both as the Underlying Cause?

Figure 1

Duodenal biopsy specimen showing villous blunting and intraepithelial lymphocytosis (white arrows). There is also chronic inflammation in the lamina propria and crypt hyperplasia consistent with gluten sensitive enteropathy (hematoxylin and eosin stain).