A 43-year-old female patient presented with a history of weight loss despite an increase in appetite, palpitations and a right sided neck swelling of four months' duration. The patient denied compression symptoms or a family history of thyroid cancer. There was enlargement of the right thyroid that moved with deglutition. There was no retrosternal extension nor lymph node enlargement. The patient had no exophthalmos or pretibial myxedema.