A Rare Presentation of Euthyroid Orbitopathy in Papillary Thyroid Carcinoma

Ophthalmopathy is one of the known presenting features of Grave’s disease. Its due to development of antithyroid receptor antibodies. Rarely it may be associated with thyroid malignancies developing in the Grave’s nodule. There are few case reports of patients with coexisting thyroid associated orbitopathy (TAO) and thyroid carcinoma. Sometimes it may be the presenting symptom of an occult thyroid malignancy. Its still rarer if the patient is euthyroid on presentation. It is associated with low titers of antithyroid receptor antibodies. Here we present a very rare case of symmetrical nonmetastatic orbitopathy in a euthyroid papillary carcinoma of thyroid. Key message: Its important to rule out coexisting thyroid cancer in patient presenting with orbitopathy even if euthyroid. Orbitopathy may regress after thyroidectomy. Association of thyroid cancer, autoimmunity and orbitopathy is still to be proven due to lack of large case series.