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Abstract Introduction Management of the thyroid gland during laryngectomy has been controversial. The primary tumor may invade the thyroid gland by direct invasion or lymphovascular spread. Hypothyroidism and hypoparathyroidism are potential risks when lobectomy or total thyroidectomy are performed simultaneously. Objective To report the frequency of thyroid gland involvement by primary laryngeal squamous cell carcinoma in patients undergoing laryngectomy and to identify possible risk factors for thyroid gland involvement so that judicious excision of thyroid gland can be attained. Methods We performed a retrospective review of 9 years. Data was collected from medical records of patients dated from December 2009 to October 2018. All patients with laryngeal cancer who underwent laryngectomy with lobectomy or total thyroidectomy were included in the present study. Results We reviewed 151 laryngectomy records. A total of 130 surgeries included the thyroid gland with the excised specimen and were available for analysis. There were 124 males and 6 females. The mean age was 59.4 years old. The glottis was the most common subsite involved, in 70 patients, followed by 38 transglottic, 16 supraglottic and 03 subglottic tumors. On histology, 12 out of 130 excised thyroid glands were involved by squamous cell carcinoma. Only subglottic involvement (p = 0.01) was significantly associated with thyroid gland invasion (TGI). Type of laryngectomy, subsite of the primary tumor, thyroid cartilage involvement, neck nodal metastases, and perineural and lymphatic invasion by the primary tumor were not associated with TGI. Conclusion Only subglottic involvement is associated with TGI; therefore, preoperative and intraoperative assessment is necessary prior to considering excision of the thyroid gland.
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Objective To comparison curative effects between radiofrequency coblation and CO 2 laser in treat‐ment of early glottic carcinoma .Methods A total of 104 patients with early glottic cancer (Tis ,T1a ,T1b ) were treated in our department from October 2007 to December 2012 .Among them 64 cases underwent radiofrequency ablation (radiofrequency group) while 40 cases underwent CO2 laser resection (CO2 laser group) .The operation time and the postoperative pain VAS scores were recorded .All of the patients were examined by electronic laryngoscopy and a‐coustic analysis in 1 week ,1 month ,3 months after surgery .Results The mean operation time of radiofrequency group was 8 .75 ± 1 .62(min)and CO2 laser group was 11 .82 ± 1 .51(min) .The radiofrequency group was better than CO2 laser group(P 0 .05) .The mucosal recovery of radiofrequency group in 1 month after surgery was better than the CO2 laser group (χ2 = 13 .842 ,P 0 .05) .All of the patients had not underwent tracheotomy .They did not have cough ,dyspnea ,severe pain ,hemoptysis ,serious compli‐cations after surgery .Conclusion Both radiofrequency coblation and CO 2 laser are safe and effective surgical meth‐ods in the treatment of early glottic carcinoma .The operation time of radiofrequency coblation is shorter than CO 2 laser surgery .The mucosal recovery in 1 month after surgery and acoustic recovery of radiofrequenay coblation are all better than that of the CO2 laser surgery .
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Objective:To study the expression of apoptosis related gene FLIP and FADD in 56 cases of human laryngeal squamous cell carcinoma.Methods:Immunohistochemical method(SP) was used to detect the expressions of FLIP and FADD in larynx carcinoma.PCNA was detected to evaluate the proliferation of carcinoma cell.Results:FLIP expression showed a positive correlation with the proliferation of larynx carcinoma cells.FADD displayed a reverse results.No associations were observed in the expressions of FLIP and FADD.The expressions of FLIP and FADD were related to tumor's clinical stage,pathological grade,but not to age,sex of patients and lymphatic metastasis.Conclusions:The abnormal expressions of FLIP and FADD may play an important role in the development of larynx carcinoma.
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BACKGROUND AND OBJECTIVES: This study investigated the expression of cytokeratin 8, 18, 19 with low molecular weight, which have been classified as a group of simple epithelium-related marker for advanced squamous cell carcinoma of the larynx. MATERIALS AND METHODS: Detection of cytokeratin expression was performed by immunohistochemical study using antikeratin monoclonal antibodies (CAM5.2, RCK108). Immunohistochemical study was used further to detect the presence of p53 mutation in larynx carcinoma, and PCR was performed to detect the infection of HPV. We then tried to draw relationship among these factors with regard to advanced larynx carcinoma. RESULTS: Cytokeratin 8, 18 (CAM5.2) was detected in 17 cases among the 19 advanced larynx carcinoma, and in 3 cases among the 15 normal larynx. Cytokeratin 19(RCK108) was detected in 18 cases among the advanced larynx carcinoma, and in 11 cases among the 15 normal larynx. HPV DNA was detected in 4 of the 19 cases of larynx carcinoma. With regard to subtypes of HPV, HPV 16 was detected in 2 cases. And p53 was detected in 6 out of the 19 cases of larynx carcinoma. There was no correlation among the cytokeratin expression, the p53 expression, and the HPV infection. CONCLUSION: This results show that cytokeratin 8, 18 (CAM5.2) expression might be a meaningful parameter in malignant change of the larynx, but the prognostic role of the cytokeratin and the role of p53 and HPV in cytokeratin expression in larynx carcinoma was not confirmed.