1991年1月～1997年12月我院行手术治疗甲状腺良性疾病528例，发现微癌9例，现报告如下。1临床资料9例中女性7例，男性2例，年龄25～76岁，原发病为甲状腺腺癌7例，结节性甲状腺肿1例，甲状腺机能亢进伴低钾周期性麻痹1例。全组患者手术前均未明确诊断微癌，术中对甲状腺可疑结 From January 1991 to December 1997, 528 cases of benign thyroid disease were surgically treated in our hospital. Nine cases of microcancerous lesions were found. The report is as follows. 1 clinical data in 9 cases of 7 cases of females, 2 males, aged 25 to 76 years old, the original disease was 7 cases of thyroid adenocarcinoma, nodular goiter in 1 case, hyperthyroidism with hypokalemic periodic paralysis in 1 case. The entire group of patients did not have a clear diagnosis of microcarcinoma before surgery. During the operation, suspicious thyroid knots were not found.