Resumen de Dermatitis and optic neuropathy due to zinc deficiency after malabsortive bariatric surgery

• We present a patient who underwent successful classic duodenal switch and developed a marked dermatitis with a significant functional limitation. This is an unusual complication, despite the relatively moderate prevalence of nutrient deficiency after this type of bariatric surgery. We discuss possible pathogenic mechanisms and emphasize the importance of an appropriate nutritional management.