ABSTRACT
Objective@#To review and summarize recent update on preoperative diagnostic criteria, treatment and postoperative follow-up for medullary thyroid carcinoma.@*Methods@#The relevant literatures and guidelines about medullary thyroid carcinoma were analyzed and summarized.@*Results@#In the early stages of the disease radical surgery still dominated. Ultrasound results suggested that prophylactic lateral neck dissection was required for patients with high risk factors or high levels of carcinoembryonic antigen and calcitonin need prophylactic. Early hereditary medullary carcinoma could receive prophylactic thyroidectomy based on RET gene test results. Advanced progressive medullary thyroid carcinoma could be treated with palliative surgery,molecular targeted drugs and chemotherapy.@*Conclusions@#The prognosis of medullary thyroid carcinoma is poor and lymph node metastasis is easy to occur early. The extent of initial operation should be enough. Locally advanced or distant metastatic medullary thyroid carcinoma can be treated with palliative surgery,molecular targeted drugs and chemotherapy.
ABSTRACT
Extrathyroidal extension of thyroid cancer has been an important adverse factor affecting the prognosis of patients. According to the latest NCCN (National Comprehensive Cancer Network) guidelines, extrathyroidal extension is the surgical guide fortotal thyroidectomy in newly diagnosed patients, and its incidence in differentiated thyroid cancer is 5%-34%, belonging to T3-T4 stage.In the eighth edition of thyroid cancer AJCC staging, the T3 stage was first divided into T3a (tumor>4 cm and limited to the thyroid) and T3b (gross extrathyroidal extension invading only strap muscles from a tumor of any size), and the "minimal extrathyroidal extension(tumor invasion intoperithyroidal soft tissue or strap muscle invasion)"of the seventh edition was removed from the T stage and changed to the gross extrathyroidal extension invading only strap muscles, but there is still much controversy. It can be seen that different degrees of "extrathyroidal extension" have significant differences in the survival and prognosis of thyroid cancer. This article reviews the latest research progress of extrathyroidal extension, and discusses the significance and clinical research progress of it.
ABSTRACT
Thyroid cancer is a common head and neck malignant tumor,it has become a malignant tumor of the highest incidence in young women in China.The treatment of thyroid cancer is a surgery-based comprehensive therapy,and the protection of the parathyroid gland during surgery has always been a major problem for clinicians.The methods for protection of parathyroid glands are in situ preservation or immediate parathyroid autotransplantation according to whether or not the blood supply can be maintained.To identify the parathyroid gland is the key issue of the protection during thryoidectomy.This article reviews the recent progress of the identification and protection of parathyroid glands at home and abroad.
ABSTRACT
Head and neck squamous cell carcinoma (HNSCC) is the sixth common malignant tumors of whole body with a high incidence, which accounts for 90% of the head and neck malignant tumors. Previous studies have shown the risk factors, such as tobacco and alcohol, are related to the occurrence and development of HNSCC. However, recent studies have shown that the non-tobacco and non-alcohol related HNSCC increased year by year. At the same time, more and more studies have shown that HNSCC is related to the infection with human papilloma virus (HPV), and the occurrence and development of HPV-positive HNSCC has own characteristics in epidemiology, pathogenesis, treatment and prognosis. In this paper the research progress for HPV-positive HNSCC is reviewed.
ABSTRACT
Sinonasal neoplasms are common tumors in the head and neck.The types of tumor pathological tissues are complex and diverse, and the incidence of malignant tumors is relatively low.The malignant tumor of paranasal sinuses is occult, and most of them are locally advanced.Although surgery is the main treatment for such diseases, the specific treatment plan is still controversial.This article reviews the treatment of sinonasal malignancy.
ABSTRACT
Objective@#To investigate the application of virtual reality technology in the preoperative evaluation of complex head and neck carcinoma and he value of virtual reality technology in surgical treatment of head and neck carcinoma.@*Methods@#The image data of eight patients with complex head and neck carcinoma treated from December 2016 to May 2017 was acquired. The data were put into virtual reality system to built the three-dimensional anatomical model of carcinoma and to created the surgical scene. The process of surgery was stimulated by recognizing the relationship between tumor and surrounding important structures. Finally all patients were treated with surgery. And two typical cases were reported.@*Results@#With the help of virtual reality, surgeons could adequately assess the condition of carcinoma and the security of operation and ensured the safety of operations.@*Conclusions@#Virtual reality can provide the surgeons with the sensory experience in virtual surgery scenes and achieve the man-computer cooperation and stereoscopic assessment, which will ensure the safety of surgery. Virtual reality has a huge impact on guiding the traditional surgical procedure of head and neck carcinoma.