Ultrastructural findings in acrodermatitis enteropathica.

Extract: Duodenal biopsies from patients with acrodermatitis enteropathica were examined by electron microscopy and dissecting microscopy. The ultrastructural studies revealed characteristic inclusions in Paneth cells with a maximum length of 7 μm. These findings were constant in four different patients. A follow-up study in one patient showed the same alterations before and after treatment.