Objective To investigate the diagnosis and treatment. Of primary hyperthyroidism and concurrent thyroid microcarcinoma. Methods A retrospective analysis of 32 cases of primary hyperthyroidism and concurrent thyroid microcacinoma proved by postoperative pathology and were admilted between January 1994 and December 2002.Resulth The morbidity was 1.07%.No case had been diagnosed before operation.All of 32 cases underwent bilateral subtotal thyroidectomy.All cases showed diffase goiter and 11 cases showed small thyroid nodules at operation. There was no evidence of lymph node metastasis. No case had reoperation. No case of recurrent hyperthyroidism nor cancer was found during the 1 to 10 (mean5.5)years follow up. Conclusion The clinical diagnosis of primary hyperthyroidism and concurrent thyroid microcarcinoma is difficult and chiefly depends on postoperative pathology. Surgical treatment gives good results and has a better prognosis ,but long term follow up is still needed.

Objective To study the treatment of adolescent hyperthyroidism. Methods Retrospective analysis of the clinical data of the adolescent hyperthyroidism treated by surgery was made in our hospital from January 1990 to December 1998. Results In this series, there was no death, with 3 cases transient postoperative hypocalcemia and 1 had throat spasm and physoia. All the 4 cases recovered after treatment. 78 cases(85.7%) were followed up for 0.5～9 years. Of them, all were in good condition except 2 being recurred. Conclusions Operative treatment for adolescent hyperthyroidism is a safe, quick and effictive method, but the operation indications should be good controlled.