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Type 1 diabetes mellitus and Graves' disease in Down's syndrome--a rare combination
Background:
Autoimmune diseases including thyroid. disorders, type 1 diabetes and celiac disease are commoner in persons with Down's syndrome compared with the general population. Coexistent type 1 diabetes and hyperthyroidism in Down's syndrome is however not commonly reported in literature.
Objective:
To report a case of a lady presenting with Graves' disease and type 1 diabetes at the same time.
Clinical Presentation:
We report the case of a 22- year-old lady with Down's syndrome who presented with weight loss, polyuria and polydipsia. Physical examination revealed typical dysmorphicfacies of Down's syndrome and a goitre. Laboratory data revealed hyperglycaemia (random plasma glucose-331 mg/dl). She also had biochemical evidence in keeping with hyperthyroidism and markedly elevated thyroid peroxidase antibodies (>1087.0 IU/ml). She improved after rehydration, insulin therapy and antithyroid drugs.
Conclusion:
Coexisting autoimmune diseases may present in patients with Down's syndrome. We advocate for routine screening for diabetes and thyroid dysfunction in ersons with Down's syndrome.
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