He denies smoking and there is no significant past medical history.
Physical examination reveals a thyroid nodule but is otherwise unremarkable.
Check off whether the following statements are true or false . If the thyroid nodule proves to be malignant there is a high likelihood that the lung nodule is malignant. Carcinoembryonic antigen and sputum cytology can be high-yield tests in this scenario. On subsequent workup, the thyroid nodule proves to be benign. In view of this, decide whether the following statements are true or false.