Résumé
Objective To investigate the clinical characteristics,diagnosis and therapeutic principle of thyroid microcarcinoma(TMC).Metllotis Clinical data of 29 TMC cases from January 1997 to December 2006 were retrospectively analyzed.Results 27 cases were performed B-ultrasonography and minimal lesion of thyroid Was detected in all patients,5 cases were diagnosed as TMC suspiciously,of whom 1 case was found to have lymph node swell in cervical part and was diagnosed as metastasis thyroid cancer by lymph node biopsy.All cases took operation and experienced intra operative frozen section and paraffin section evaluation,indicating that 23 cases were confirmed by intra operative frozen section and 6 cases were confirmed by paraffin section.All cases were followed up after operation,of whom 2 patients undergoing homo-lateral near total thyroidectomy experienced recurrent after 2 years and 3 years operation respectively,and one patient died from cerebral hemorrhage.Conclusion Though it is difficult to confirm the diagnosis of TMC before operation,B-uhrasonography before operation combined with frozen section intra operation is the effective diagnostic method,and homolateral lobe and isthmus total thyroidectomy is the fundamental operation management.