ECE2010 Poster Presentations Clinical case reports and clinical practice (80 abstracts)
Primary biliary cirrhosis and Graves’ disease – combination rarely found
Alexandra Vieira 1 , Sandra Paiva 1 , Cristina Ribeiro 1 , Jacinta Santos 1 , Mariana Martinho 2 , Márcia Alves 1 , Sofia Gouveia 1 , Francisco Carrilho 1 & Manuela Carvalheiro 1
1Endocrinology, Diabetes and Metabolism Department, Coimbra University Hospital, EPE, Coimbra, Portugal; 2Endocrinology Department, Portuguese Institute of Oncology, EPE, Coimbra, Portugal.
Introduction: The association of autoimmune diseases in the same individual is common. It is well documented that Graves’ disease (GD) is associated to various autoimmune diseases, including: pernicious anemia, vitiligo, type 1 diabetes, Addison’s disease, systemic sclerosis, myasthenia gravis, Sjogren’s syndrome, rheumatoid arthritis and systemic lupus erythematosus. In addition, primary biliary cirrhosis (PBC) may be associated with rheumatoid arthritis, Sjogren’s syndrome, Raynaud’s phenomenon and autoimmune thyroiditis, often observed the presence of hypothyroidism. However, the association of PBC and GD is rare. It is described in the literature only 5 cases.
Case report: Female, 63 years old, sent to the endocrinologist for hyperthyroidism. The patient had a history of cholecystectomy and PBC diagnosed 9 years ago. She was treated with ursodeoxycholic acid 500 mg twice a day. She reported palpitations, excessive sweating, irritability and weight loss.
Physical examination: heart rate of 80 bpm, coarse tremor, bosselated thyroid and non-pulsatile. Laboratory findings: TSH 0.01 μUI/ml (0.27–4.20), free T4 3.76 ng/dl (0.93–1.7), anti–TPO 244 UI/ml (<34) and TRAbs 4.2 U/l (<1.5).
Thyroid ultrasonography showed an enlarged, lobulated, slightly heterogeneous gland and a nodule with 1 cm in diameter in the left lobe. Fine-needle aspiration biopsy was performed: colloid nodule. The patient was treated with methimazole 15 mg/day and propranolol 10 mg twice a day. For persistence of hyperthyroidism, although the increasing of methimazole dose, the patient underwent radioiodine therapy (7.4 mCi). The patient developed hypothyroidism, therefore was treated with levothyroxine. She is currently euthyroid.
Conclusions: Despite frequent association of autoimmune diseases in the same individual, the authors present this case for the rare association between PBC and GD.
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Endocrine Abstracts
ISSN 1470-3947 (print) | ISSN 1479-6848 (online)
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