There were 7 female and 5 male,with a diffuse goiter(n=3),a diffuse goiter with a cold nodule (n=3),multinodular goiter (n=6).

• 12例患者中，甲状腺呈弥漫性肿大3例，弥漫性肿大伴单结节3例，多结节性肿大6例；