下咽癌颈淋巴结转移的临床病理学特点及其对预后的影响

目的探讨影响下咽癌颈淋巴结转移的临床病理因素和颈淋巴结转移对预后的影响。方法采用X^2检验和Logistic回归分析，对98例下咽癌患者的临床病理学因素与颈淋巴结转移的关系进行回顾性研究。并对颈淋巴结转移状态、转移颈淋巴结大小、转移颈淋巴结数目、转移颈淋巴结累及区域数、转移颈淋巴结最低受累区域等淋巴结病理学因素对生存率的影响，进行Cox回归分析。结果下咽癌患者5年生存率为28．6％。单因素和多因素分析均证实，肿瘤生长方式、肿瘤大小与发生颈淋巴结转移关系密切。而肿瘤突破基底膜达黏膜下层后对下咽癌颈淋巴结转移发生率不再产生进一步影响。Cox回归分析表明，临床N分期、颈淋巴结转移状态、转移颈淋巴结大小、转移颈淋巴结最低受累区域因素影响患者生存率，特别是转移颈淋巴结大小、转移颈淋巴结最低受累区域因素与下咽癌患者生存率明显相关。结论下咽癌颈淋巴结转移是影响患者预后的重要因素，预测下咽癌颈淋巴结，对其作出早期正确诊断，并对影响预后的淋巴结因素采取相应治疗措施是提高下咽癌治疗效果的关键。     

Prognostic importance of paratracheal lymph node metastases

OBJECTIVES: The aim of this retrospective study was to evaluate the prognostic significance of paratracheal lymph node (PTLN) metastases for tumor recurrence and survival for patients treated with total laryngectomy (TL) and PTLN dissection. STUDY DESIGN: Records from 85 patients who underwent TL combined with PTLN dissection for laryngeal or hypopharyngeal carcinomas were reviewed. RESULTS: In 20 of 85 (24%) patients, PTLN metastases were found, and in 7 patients, extranodal spread (ENS) was present in these metastases. The incidence of PTLN metastases was high in patients with hypopharyngeal or cervical esophageal (35%) and laryngeal carcinoma with subglottic extension (27%). Multivariate analysis shows that the most important prognostic factor for overall survival is the presence of PTLN metastases with ENS (P < .0005). CONCLUSIONS: Because PTLN metastases with ENS is an important prognostic factor and can only be assessed by histopathologic examination, PTLN dissection in patients with a laryngeal or hypopharyngeal tumor is important for prognostication.     

声门上型喉癌颈淋巴结转移方式及其对预后的影响

目的：探讨影响声门上型喉癌颈淋巴结转移的临床病理因素及颈淋巴结转移对预后的影响。方法：用x^2检验和Logistic回归分析，对55例声门上型喉癌患者的肿瘤临床病理学因素与颈淋巴结转移的关系进行回顾性分析；并对颈淋巴结转移状态，转移颈淋巴结大小、数目、累及区域、最低受累区域等病理学因素对预后的影响进行Cox回归分析。结果：单因素分析显示，肿瘤病理分级、肿瘤大小、肿瘤浸润深度与发生颈淋巴结转移有关；多因素分析显示，肿瘤病理分级、肿瘤大小与发生颈淋巴结转移明显相关；声门上型喉癌患者5年生存率为52．7％。Cox回归分析表明，临床N分期、颈淋巴结转移状态、转移颈淋巴结大小影响患者预后。结论：声门上型喉癌颈淋巴结转移的发生受原发癌病理学因素的影响，它从多个角度明显影响患者预后；对影响预后的淋巴结因素采取相应治疗措施，对提高声门上型喉癌的治疗效果具有重要意义。     

Involvement of level I neck lymph nodes and submandibular gland in laryngeal and/or hypopharyngeal squamous cell carcinoma

OBJECTIVE: To investigate the prevalence of level I neck lymph node metastases or submandibular nodal metastases in laryngeal and/or hypopharyngeal squamous cell carcinoma (SCC). PATIENTS AND METHODS: One hundred fifty consecutive neck dissection specimens from 100 patients with laryngeal and hypopharyngeal SCC, who were treated at our institution between 1992 and 2002, were retrospectively reviewed. RESULTS: The tumour stage was T1-T4, and the neck stage was N0-N3. Metastases were never found in level I (Ia + Ib) or in the submandibular gland. Metastases were concentrated within the jugular chain (levels II-IV in 92.2% of the N-positive necks). CONCLUSION: Metastases of level I of the neck and the submandibular gland are extremely rare in cases of laryngeal and/or hypopharyngeal carcinoma. The risk of facial or hypoglossal nerve injury does not justify the dissection of level I and of the submandibular gland in this type of tumour.     

Delayed regional metastases, distant metastases, and second primary malignancies in squamous cell carcinomas of the larynx and hypopharynx

OBJECTIVE: To determine the impact of delayed regional metastases, distant metastases, and second primary tumors on the therapeutic outcomes in squamous cell carcinomas of the larynx and hypopharynx. STUDY DESIGN: Chart review and statistical analysis. METHODS: A retrospective tumor registry analysis was made of patients with squamous cell carcinomas of the larynx and hypopharynx who were treated with curative intent in the Department of Otolaryngology-Head and Neck Surgery and the Radiation Oncology Center of the Washington University School of Medicine (St. Louis, MO) between January 1971 and December 1991 and developed delayed regional metastases (2 y after treatment), distant metastases, and second primary malignancies. RESULTS: In 2550 patients, the mean age (59.8 y), sex (8.5 male patients and 1 female patient), and tumor differentiation did not affect the incidence of delayed distant, regional, or second primary malignancies. The overall incidence of delayed regional metastases was 12.4% (317/2550 patients); distant metastases, 8.5% (217/2550); and second primary tumors, 8.9% (228/2550), with a 5-year disease-specific survival of 41%, 6.4%, and 35%, respectively. Second primary malignancies were not statistically related to the origin of the primary tumor, tumor staging, or delayed regional and distant metastases (P =.98). Delayed regional metastases and distant metastases were related to advanced primary disease (T4 stage), lymph node metastases (node positive [N+]), tumor location (hypopharynx), and locoregional tumor recurrence (P < or =.028). Advanced regional metastases at initial diagnosis (N2 and N3 disease) increased the incidence of delayed and distant metastases threefold (P =.017). These two metastatic parameters were significantly greater in hypopharyngeal tumors than in laryngeal tumors (P =.037). The incidences of delayed regional metastases by anatomical location of the primary tumor were as follows: glottic, 4.4%; supraglottic, 16%; subglottic, 11.5%; aryepiglottic fold, 21.9%; pyriform sinus, 31.1%; and posterior hypopharyngeal wall, 18.5%. The incidences of distant metastases were as follows: glottic, 4%; supraglottic, 3.7%; subglottic, 14%; aryepiglottic fold, 16%; pyriform fossa, 17.2%; and posterior hypopharyngeal wall, 17.6%. Seventeen hypopharyngeal tumors (2%) presented with M1 disease. Delayed regional metastases to the ipsilateral treated neck had a significantly worse survival prognosis than delayed metastases to the contralateral nontreated neck (P =.001). CONCLUSIONS: Conclusions are as follows: 1) The incidence of second primary tumors is independent from the primary tumor staging and distant and delayed regional metastases. The highest incidence occurred in patient groups with the highest disease-free survival rates (P =.0378). 2) Highest incidence of delayed and distant metastases occurred in hypopharyngeal tumors and was three times greater than in laryngeal cancers (P =.028). 3) Salvage therapeutic rates were poor for delayed metastases to the ipsilateral treated nodes and distant metastases as compared with contralateral neck metastases and second primary tumors (P =.001). 4) Delayed and distant lymph node metastases were significantly higher in advanced primary disease (T4 stage), locoregional recurrences, and regional disease (N2 and N3) (P =.028) in both the larynx and hypopharynx. 5) The higher incidence of delayed and distant metastatic disease was related to more advanced initial tumor presentation in hypopharyngeal cancer as compared with laryngeal cancer (P =.039). 6) Incidence of distant metastases was greatest between 1.5 and 6 years after initial treatment with a mean incidence being less than or equal to 3.2 years.     

喉癌和下咽癌颈淋巴结转移临床对比分析

目的：探讨喉癌、下咽癌患者颈淋巴结转移的特点和分布规律。方法：对全喉切除术同期及复发后第1次行颈淋巴结清扫的129例喉癌、下咽癌患者的临床资料进行回顾性对比分析，研究不同类型的喉癌、下咽癌患者颈淋巴结的转移情况。结果：声门上型喉癌、下咽癌患者易发生早期淋巴结转移；下咽癌患者的转移淋巴结融合率高，颈静脉下区出现阳性淋巴结的比率高；声门上型喉癌、下咽癌患者原发病灶分化差的比率相对偏高；同期与复发后行颈淋巴结清扫的患者原发病灶分期差异无显著性意义。结论：对T2期及以上的声门上型喉癌及下咽癌患者，尤其当细胞分化比较差时，即使颈淋巴结阳性体征不明显亦应积极考虑颈淋巴结清扫问题，对下咽癌患者行颈淋巴结清扫时应考虑彻底清扫颈静脉下区的淋巴结。     

Evaluation of cervical lymph node metastasis of 1400 patients with cancer of the larynx

OBJECTIVE: The main goal of the paper was to evaluate the results of surgical treatment of patients with laryngeal carcinoma, among whom cervical lymph node metastases were observed. The results of treatment were assessed after prior analysis of the following factors localization of laryngeal carcinoma, local and regional advancement, number of lymph nodes affected by metastases, the incidence of 'occult metastases', the presence of metastases in the pre-laryngeal node, the regions of the neck which were most frequently affected by metastases and supplementary irradiation treatment. METHODS: An analysis of a group of 1400 patients who underwent surgery for laryngeal carcinoma in the period 1948-1992, was carried out. In all of the cases, a partial or total laryngectomy accompanied by a unilateral or bilateral surgery of the cervical lymph node system was performed. The results of the above treatment were assessed over a 5-year survival period. RESULTS: In patients among whom metastases to the lymph nodes were observed, it is the following factors that exert an influence on survival chances: supraglottic and glottic localization of the tumor, an increase of regional and organ advancement of the tumor, number of lymph nodes affected by metastases, the presence of metastases in the 'pre-laryngeal' node and the level of the neck affected by metastases. CONCLUSION: The incidence of metastases in regional lymph nodes is a prognostic factor in the treatment of patients suffering from laryngeal carcinoma.     

Prognostic value of cell proliferation markers,tumour suppressor proteins and cell adhesion molecules in primary squamous cell carcinoma of the larynx and hypopharynx

In an attempt to identify molecular prognostic markers, a series of laryngeal and hypopharyngeal carcinomas was examined for PCNA, Ki67, p27(Kip1), p53, E-cadherin and CD44 by immunohistochemistry and for DNA content by flow cytometry. No correlation was found between E-cadherin, CD44, p53 or DNA ploidy and the clinicopathological data. The fraction of cancer cells immunolabelled for p27(Kip1) correlated with tumour differentiation, but not with lymph node metastasis. In contrast, the PCNA, Ki67 and S-phase fractions of cancer cells were significantly higher in tumours with lymph node metastasis than in those without lymph node metastasis and were correlated with pathological T-stages and with tumour dedifferentiation. In univariate analysis, advanced pathological T-stage, lymph node metastasis and high fractions of cancer cells immunolabelled for PCNA or Ki67 inversely correlated with overall and disease-free survival. In multivariate analysis, lymph node metastasis was the only factor significantly associated with poor survival. The data suggest that immunohistochemical investigation of PCNA and Ki67 and flow cytometric analysis of S-phase fractions may be useful predictive markers of biological aggressiveness in laryngeal carcinomas.     

核素法定位临床检查无淋巴结转移喉癌及下咽癌前哨淋巴结的研究

目的 分析核素法中放射性活性淋巴结的转移特点,探讨临床检查未发现转移淋巴结(clinically NO,cNO)喉癌及下咽癌前哨淋巴结(sentinel lymph node,SLN)的定位方法.方法 对45例具有高隐匿性转移的cNO喉癌和下咽癌患者,在局麻下距肿瘤边缘约1～2 mm处分3、4个等距离点注射99m锝-硫化胶体(99mTc-labeled sulfur colloid 99mTc-SC),2 h后行核素扫描探测颈部高核素浓集的淋巴结.10～12 h后开始手术,术中用手提式γ探测仪探测腮腺咬肌区的放射活性值作为本底背景值.翻开颈阔肌皮瓣探测术野,将放射活性计数值高于本底背景值的所有淋巴结定义为SLN.切取SIN并行常规、连续切片病理检查和免疫组化法检查微小转移灶.所有患者SLN切除后即行择区性颈淋巴清扫术,并按肿瘤不同部位和T分级行原发灶切除术.结果 有4例未能检出SLN;其余41例共51侧颈部检出SLN,13例共15侧颈部SLN中发现肿瘤转移,1例假阴性.以颈清扫标本病理诊断结果为金标准,定位活检成功率为92.7%,灵敏度为93.7%,假阴性率为6.3%,准确度为98.0%.在SLN有转移的15侧颈部中,有11侧(73.3%)转移发生在放射性计数值最高的SLN,转移阳性的淋巴结均在每侧放射活性计数值最高的前3枚淋巴结中.结论 核素法定位喉癌下咽癌SLN有临床应用前景,取放射性计数值最高的前3枚SLN能较准确地判断颈淋巴结有无转移.     

Survivin expression is significantly higher in pN+ oral and oropharyngeal primary squamous cell carcinomas than in pN0 carcinomas

CONCLUSIONS: The preliminary results reported here suggest that survivin expression in primary oral and oropharyngeal squamous cell carcinomas (SCCs) may identify patients at risk of disease disseminating to neck lymph nodes. If these results are confirmed in larger series of patients it may imply that elective neck dissection should be considered in clinically N0 patients with oral and oropharyngeal SCCs who show high expression of survivin. OBJECTIVE: To investigate the expression of survivin, a member of the inhibitor of apoptosis proteins family, in patients with primary oral and oropharyngeal SCCs with and without neck lymph node metastases. MATERIAL AND METHODS: We considered 13 consecutive cases of oral and oropharyngeal SCCs with lymph node metastases (pN + ) and 13 cases of pN0 oral and oropharyngeal SCCs. The survivin reactivity of primary SCCs and lymph node metastases was evaluated immunohistochemically. A lesion was considered positive if >9.5% of the tumour cells showed diffuse strong staining. RESULTS: Sporadic groups of normal basal and parabasal epithelial cells showed weak survivin staining. In SCCs, a nuclear reaction predominated. Eight primary pN+ SCCs were survivin-positive (mean expression 34.7%), compared to 5 primary pN0 SCCs (mean expression 12.3%; p=0.017). Statistical analysis disclosed significantly higher survivin expression in primary oral and oropharyngeal SCCs that developed distant non-lymphatic metastases (p=0.012).     

Squamous cell carcinoma of the nasal vestibule

From 1978 to 1992, 66 patients (32 women and 34 men) were treated for carcinoma of the nasal vestibule at Odense University Hospital. The treatment was radiotherapy (41 patients), surgery (13 patients) or a combination of the two modalities (12 patients). Twenty-one patients (32%) developed recurrence. Of these, 17 (81%) were diagnosed within the first two years of follow up. The recurrence rate was found to be correlated to the anatomic site of the tumour-origin; septal site of origin meant higher risk of recurrence. Five-year disease specific and crude survival of all patients were 87.0% and 58.5%, respectively. Several variables (sex, age, anatomic site of origin, Wang-classification, tumour volume and regional lymphnode metastases at time of diagnosis) were evaluated as possible prognostic indicators. In univariate analysis, regional lymph node metastases at the time of diagnosis and anatomic site of origin of the tumour showed a significant influence on survival. In multivariate analysis, septal origin of primary tumour was a significant, independent predictive factor of recurrence and the presence of lymph node metastases at the time of diagnosis showed to be a highly significant prognosticator of both disease specific and crude survival (p < 0.0001). We conclude that patients with primary lymph node metastases and septal location of primary tumour need intensive primary treatment and close follow up.     

Nodal patterns in carcinoma larynx and hypopharynx

The therapeutic choice for a malignant neoplasm is usually governed by the probability and location of lymph mode metastases. In the present study 47 cases of carcinoma larynx and 44 cases of carcinoma hypopharynx were throughly investigated and reviewed. Among the laryngeal malignancies supra glottic and transglottic tumours were equally frequent (46.8%). Among the hypopharyngeal malignancies, pyriform fossae were most frequently invloved (90.9%). In laryngeal malignancies (51.06%) as well as hypopharangeal malignancies (77.27%) T⁴ tumour were more common. Overall incidence of cervical metastases was (63.83%) in laryngeal carcinoma and (45.45%) in hypopharyngeal carcinoma respectively. In majority of laryngeal carcinoma cervical modes were present at level B followed by level E. In hypopharyngeal malignancies mode B and E were only involved. There was definite correlation between ‘T’ of the primary tumour, and node status but there was no correlation between ‘T’ and node level. The study stresses on the relevance of nodal pattern examination and radiological investigations in all cases of carcinoma larynx and hypopharynx.     

High nuclear expression of the apoptosis inhibitor protein survivin is associated with disease recurrence and poor prognosis in laryngeal basaloid squamous cell carcinoma

CONCLUSION: Nuclear expression of survivin should be studied as a promising marker of higher-risk laryngeal basaloid squamous cell carcinomas (BSCCs), which can then be treated more aggressively and followed more closely. OBJECTIVE: BSCC is an uncommon bimorphic variant of SCC. The hypothesized greater aggressiveness and poorer prognosis of head and neck BSCC compared to SCC are still under debate. The regulation of apoptotic cell death has a profound effect on the pathogenesis and progression of malignancies. Survivin is the smallest member of the inhibitor of apoptosis gene family. The aim of this study was to investigate for the first time the expression of the inhibitor of apoptosis protein survivin in laryngeal BSCCs and their neck lymph node metastases and to compare the results with those obtained with conventional SCCs. MATERIAL AND METHODS: Immunoreactivity to survivin was determined in nine laryngeal BSCCs and nine site- and stage-matched SCCs. RESULTS: A nuclear subcellular localization of survivin dominated in both primary laryngeal BSCCs and SCCs and in their lymph node metastases. There was no significant difference in mean survivin expression between primary laryngeal BSCCs (25.1%) and SCCs (25.6%) (p=0.86). Nuclear survivin expression was significantly higher in BSCCs associated with disease recurrence and poor prognosis (p=0.02).     

Expresión de E-cadherina y β-catenina en carcinomas de células escamosas de laringe e hipofaringe

Introduction and objectivesDysfunction of the E-cadherin/catenin complex is directly related to carcinogenesis and metastases development.The aim of this paper is to investigate the prognostic significance of E-cadherin and β-catenin expression in surgically treated laryngeal and hypopharyngeal squamous cell carcinomas.Material and methodsTumour tissue samples were obtained from 133 consecutive patients with squamous cell carcinomas of the head and neck: 68 of the larynx and 65 hypopharyngeal carcinomas, who underwent surgical treatment in our hospital between 2000 and 2005.E-cadherin and β-catenin expression was analysed by immunohistochemistry, quantifying the percentage of stained cells and the intensity of staining.ResultsE-cadherin and β-catenin expression was evaluable in 59 laryngeal carcinomas and in 58 cases of hypopharyngeal carcinomas.In the laryngeal tumours, a significant association was found between the low expression of membrane β-catenin with T4 tumours and tumour recurrence. In the hypopharynx there was a significant association between positive expression of nuclear β-catenin and poor histological differentiation (P = .02). In the multivariate analysis, only the presence of lymph node metastases was an independent predictive factor of decreased disease-specific survival in laryngeal squamous cell carcinomas.ConclusionsThe expression of E-cadherin and β-catenin does not show prognostic significance in laryngeal and hypopharyngeal squamous cell carcinomas over the TNM classification.     

喉及下咽部鳞状细胞癌中血管内皮生长因子-c及其受体FLT-4表达与淋巴结转移的相关研究

目的：研究喉及下咽部鳞状细胞癌组织中血管内皮生长因子-C（VEGF-C）及其受体VEGFR-3（FLT-4）的表达情况,以及它们在肿瘤淋巴转移、微转移中的作用和意义。方法：采用免疫组织化学SP法及图像分析技术,检测49例喉及下咽部痛组织中VEGFC、FLT-4及淋巴结中VEGF-C蛋白表达和相对含量。结果：喉及下咽部癌组织中VEGF-C的表达与病理分级密切相关（均P〈0．05）,与淋巴结转移之间存在相关关系（均P〈0．05）,与临床T分期无关。FLT-4表达与VEGF-C阳性表达呈同向性改变,与淋巴结转移相关（均P〈0．05）;喉及下咽部癌组织中,FLT-4阳性脉管数与病理分级及临床T分期差异无统计学意义（均P〉0．05）。喉及下咽部癌组织中淋巴结微转移组,VEGFC、FLT-4表达与无转移组之间的差异无统计学意义（P〉0．05）。结论：VEGFC在喉及下咽部癌组织中,通过其特异性受体FLT-4导致淋巴管增生,促进肿瘤淋巴转移,从而影响患者的预后;检测VEGF-C、FLT-4,对肿瘤诊断、判断患者预后具有重要临床价值。     

Paratracheal lymph node dissection during laryngectomy after previous (chemo)radiotherapy: a retrospective analysis of complications and histopathological results

Clin. Otolaryngol. 2011, 36 , 37–44 Objectives: To evaluate complications and histopathological results of paratracheal lymph node dissection (PTLND) at laryngectomy after (chemo)radiotherapy. Design, setting and participants: In a retrospective analysis, complications and histopathological results of paratracheal lymph node dissections were analysed in 191 patients with a recurrent or second primary laryngeal or hypopharyngeal carcinoma following radiotherapy with or without chemotherapy. Main outcome measures: The percentage of complications in patients with bilateral, unilateral or without PTLND. Results: Forty‐seven patients underwent laryngectomy with bilateral paratracheal lymph node dissection, 52 with unilateral and 92 without paratracheal lymph node dissection. Although the difference in total complications was not significant, significantly more fistulae developed in patients with bilateral paratracheal lymph node dissection (40%versus 22%; P = 0.016). In multivariate analysis, this difference maintained significant (P = 0.038). Pathological examination of the lymph node dissection specimen showed tumour in 3 of the 96 ipsilateral dissections (3%) and in 1 of the 50 contralateral dissections (2%). This suggests that if unilateral instead of a bilateral paratracheal lymph node dissection had been performed, 17% less fistulae would have occurred in this group of patients, while paratracheal lymph node (PTLN) metastases would have been missed in one patient. Three of four patients with paratracheal lymph nodeparatracheal lymph node metastases had glottic carcinoma, all with subglottic extension. Conclusion: Because of the low incidence of lymph node metastases and the increased risk of fistulae, there is a need for a strict selection of patients who need a bilateral paratracheal lymph node dissection at laryngectomy after previous (chemo)radiotherapy.     

Supraglottic laryngectomy: analysis of 267 cases

Horizontal supraglottic laryngectomy (HSL) allows the preservation of a functioning larynx and avoids permanent tracheotomy. In this retrospective study we report our experience with HSL and describe the functional and oncological results of the procedure. A total of 267 previously untreated patients with squamous cell carcinoma of the supraglottis underwent a supraglottic laryngectomy at our Department from January 1978 to May 2002. The main outcome measures were: local and regional control, disease-specific survival and laryngeal preservation rate. The overall recurrence rate was 29% (78/267). The local recurrence rate was 8% (22 patients) and the regional recurrence rate was 17% (45 patients). The 5-year disease-specific survival rate was 73%. The 5-year laryngeal preservation rate was 82%. Multivariate analysis showed two parameters that were independent predictors of a reduced disease specific survival: cervical lymph node metastases of class N3 (P = 0.0003) and primary tumour classified as T4 (P = 0.004). HSL provided, in our experience, an optimal locoregional oncological control for laryngeal preservation.     

喉癌喉咽癌哨位淋巴结的临床初步研究

目的 探讨喉癌喉咽癌哨位淋巴结的检测及其对颈淋巴结转移的预测价值。方法 用手术中注射蓝染料的方法,对29例颈淋巴结NO的喉癌喉咽癌患者进行了哨位淋巴结的临床研究。手术中取蓝染的哨位淋巴结作快速冰冻病理检查,并与HE染色病理检查结果及颈清扫切除的淋巴结病理检查对照,观察哨位淋巴结转移对颈淋巴结转移癌的预测值。结果 29例中28例成功地显示了哨位淋巴结,成功率达96．6％。每例发现蓝染的哨位淋巴结1－4个,平均每例则检出2．5个。有3例患者的哨位淋巴结检测有肿瘤转移,HE染色病理检查及颈清扫切除的淋巴结病理检查均证实颈淋巴结转移。25例哨位淋巴结冰冻病理检查阴性患者,颈淋巴结清扫标本亦未查见淋巴结转移。哨位淋巴结对颈淋巴结转移的阳性正确率和阴性预测率为100％。结论 哨痊淋巴结检测对喉咽癌的淋巴结转移有重要的预测价值。