[Acquired zinc deficiency mimicking glucagonoma dermatitis. Histology and electron microscopy]

A 47-year-old man suffering from colitis ulcerosa developed serious anaemia, oedema, stomatitis with burning tongue, dry skin and erosive lesions with peripheral spreading on the ankles. Histology and electron microscopy showed characteristic signs for necrolytic migratory erythema, zinc deficiency acrodermatitis, or pellagra. Decreased serum zinc level and response to oral zinc substitution finally proved the diagnosis of acquired zinc deficiency.