Abstract
A 50-year-old woman was admitted to our hospital because of severe diarrhea, irritableness, and severe pitting edema of the legs. The patient had been well until 5 years before admission, when a tremor and tachycardia developed and a diagnosis of Graves' disease was made. Treatment with methimazole was effective in reducing her tremor and tachycardia; however, she was often nonadherent with her antithyroid medication because of improvement of her symptoms. On admission, a thyroid swelling, exophthalmos, a pleural effusion, and ascites were observed. The results of thyroid function tests (free triiodothyronine: 21.5 pg/mL; free thyroxine: 7.17 ng/dL; thyroid-stimulating hormone (TSH): <0.01 μIU/mL; TSH receptor antibodies: 95.9%) were consistent with Graves' disease. Biochemical analysis of pleural and ascitic fluid was consistent with chylothorax and chylous ascites, respectively. Serum calcium, total protein, and albumin were very low. Her symptoms and signs except severe diarrhea, edema, pleural effusion, and ascites disappeared after receiving intravenous drip infusion of fluid replacement, and methimazole and iodine. Because of malnutrition, she was given a high-calorie intravenous infusion. Three months after admission, her pleural effusion and ascites began to improve, as did her diarrhea and hypoalbuminemia. An appropriate treatment of Graves' disease is crucial to avoid serious sequelae of longstanding, poorly controlled hyperthyroidism.
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