Table 1.

Risk factors for thyroid malignancy [2].

Risk factors for thyroid malignancy
(1) Previous irradiation
(2) Age <20 or >60 years
(3) Male
(4) History of cancer
(5) Family history of thyroid cancer
(6) Rapid growth
(7) Hard nodule
(8) Single nodule
(9) Size > 4 cm
(10) Cervical lymphadenopathy
(11) Vocal cord palsy