南方医科大学病理学系南方医科大学病理学系甲状腺病理学李祖国李祖国E-mail:E-mail:The butterfly-shaped thyroidThis is the normal appearance of the thyroid gland on the anterior trachea of the neck.The thyroid gland has a right lobe and a left lobe connected by a narrow isthmus.The normal weight of the thyroid is 10 to 30 grams.It cannot easily be palpated on physical examination.一、甲状腺1、一般结构一般结构:被膜(结缔组织)被膜(结缔组织)包膜深入分隔甲状腺形成小叶包膜深入分隔甲状腺形成小叶。2、实质:实质:两种上皮细胞+均质嗜酸性胶状物。单层滤泡上皮细胞单层滤泡上皮细胞滤泡旁细胞滤泡旁细胞滤泡上皮细胞 LM:立方细胞、核圆居中立方细胞、核圆居中 EM:游游离离面面有有微微绒绒毛