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本文报道22例甲状腺腺瘤恶变，占同期收治甲状腺腺癌的3．7％。以不典型腺瘤、嗜酸性腺瘤、胚胎型腺瘤恶变率较高，应引起警惕。腺瘤恶变术前诊断困难，术中冰冻切片有重要价值，本病的主要手术方式是腺叶或加峡部切除。
This article reports the malignant transformation of thyroid adenoma in 22 cases, accounting for 3.7% of the thyroid gland adenocarcinoma in the same period. Atypical adenomas, eosinophilic adenomas, and embryonal adenomas have a high rate of malignancy and should be wary. The preoperative diagnosis of adenoma malignancy is difficult. Intraoperative frozen section has important value. The main surgical method of this disease is glandular lobe or plus isthmus resection.