Objective Discussing the clinic meaning which cystic duct is low confluence to CBD.Method Combining the anatomy of cystic duct,analyzing 5 cases with low confluence of cystic duct.Results Cystic duct were opened and caught out stones,then closed by direct future in 2 cases. The cystic duct were not cut out in all cases.They were fine without any discomforts such as abdomen pain,abdomen bulge over 2 years.Conclusions Anatomic should becareful in the cases with low confluence of cystic duct.The stones in the cystic duct should be taken out.The cystic duct may be left longer.Simple longer cystic duct may be no clinical meanings.

Thyroid cancer is the most common malignant tumor of the head and neck, among which papillary thyroid carcinoma is the most common. Papillary thyroid carcinoma with a diameter of ≤ 1.0 cm is called thyroid micropapillary carcinoma. In recent years, thermal ablation technology for the treatment of thyroid micropapillary carcinoma has developed rapidly at home and abroad. At present, many guidelines, consensus and clinical studies related to thermal ablation treatment of thyroid micropapillary carcinoma have been published at home and abroad. Based on the existing literature, guidelines and clinical studies, this article summarizes, discusses and analyzes the advantages, indications, efficacy, safety, and existing problems of thermal ablation therapy for thyroid cancer.