We report the case of a patient with the coexistence of Graves' disease and autonomously functioning thyroid nodules. Because of the suspicious ultrasound pattern, he was submitted to fine-needle aspiration of the hot nodule and cytology revealed a papillary thyroid cancer. After total thyroidectomy a papillary thyroid cancer was found.
Keywords: Graves’ disease; Marine‐Lenhart syndrome; hot thyroid nodule; thyroid cancer.