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Cervical Lymph Node Metastases (cervical + lymph_node_metastase)
Selected AbstractsIs central neck dissection necessary for the treatment of lateral cervical nodal recurrence of papillary thyroid carcinoma?HEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 10 2007Jong-Lyel Roh MD Abstract Background: Although the pattern of cervical lymph node metastases from papillary thyroid carcinoma (PTC) has been described, little is known about the pattern of lateral cervical nodal recurrence. The aim of this study was to establish the optimal strategy for neck dissection in patients who underwent reoperation for lateral cervical recurrence of PTC. Methods: We reviewed the records of 22 patients who underwent neck dissection for lateral nodal recurrence of thyroid cancer between 2002 and 2004. Eight patients had thyroid remnants or recurrent tumors in the bed and 6 had undergone lateral neck dissection prior to referral. Patients underwent comprehensive dissection of the posterolateral and ipsilateral (n = 10) or bilateral (n = 12) central neck. The pattern of nodal recurrence and postoperative morbidity were analyzed. Results: All patients had lateral compartment involvement, 91% at mid-lower, 45% at upper, and 18% at posterior sites. Central nodes were involved in 86% of patients: 82% at ipsilateral paratracheal, 32% at pretracheal, 27% at superior mediastinal, and 2 patients at contralateral sites. Skip lateral recurrence with no positive central nodes was rarely observed (14%). Postoperative vocal cord palsy (n = 1) and hypoparathyroidism (n = 5) developed only in patients undergoing bilateral central compartment dissection. Conclusions: The inclusion of comprehensive ipsilateral central and lateral neck dissection in the reoperation for patients with lateral neck recurrence of PTC is an optimal surgical strategy. © 2007 Wiley Periodicals, Inc. Head Neck, 2007 [source] Retropharyngeal node metastasis from papillary thyroid carcinomaHEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 5 2007Naoki Otsuki MD Abstract Background. Papillary thyroid carcinomas commonly metastasize to paratracheal and jugular lymph nodes. Metastasis to the retropharyngeal node is rare for this tumor. Methods. Five patients underwent surgical treatment for metastasis of thyroid papillary carcinoma to the retropharyngeal lymph nodes that presented as a parapharyngeal or retropharyngeal mass. All patients had a history of total or subtotal thyroidectomy as their initial treatment. Among them, 3 patients had undergone ipsilateral modified radical neck dissection at their initial treatment. The other 2 patients had a history of bilateral or ipsilateral modified neck dissection for their subsequent cervical lymph node metastases. Results. Metastatic retropharyngeal nodes were successfully resected via transcervical approach in all patients. Although aspiration and difficulty in swallowing were observed in 2 patients after surgical treatment for metastatic retropharyngeal nodes, these complications spontaneously resolved within a few months. Conclusions. This study suggests that neck dissection and/or metastatic cervical lymph nodes might alter the direction of lymphatic drainage to the retrograde fashion, resulting in the unusual metastasis to the retropharyngeal lymph nodes. Although the cases described here are rare, metastasis to the retropharyngeal node should be considered at the follow-up for thyroid papillary carcinoma. Because these metastases will be missed by routine ultrasonography of the neck, periodic CT scan or MRI is recommended for follow-up, especially for patients with a history of neck dissection. © 2006 Wiley Periodicals, Inc. Head Neck, 2007 [source] Risk factors for late cervical lymph node metastases in patients with stage I or II carcinoma of the tongueHEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 8 2002Hideo Kurokawa DDS Abstract Background Many histopathologic parameters in squamous cell carcinoma of the tongue have been identified as predictive factors for cervical lymph metastasis. However, predictive factors for occult cervical lymph node metastases and the criterion for elective therapy remain inconclusive. This study analyzed the clinicopathologic factors associated with late cervical lymph node metastases in patients with carcinoma of the tongue. Methods The clinicopathologic features of 50 consecutive patients seen between January 1985,December 1996 with previously untreated stage I or II squamous cell carcinoma of the tongue were reviewed. All patients were treated with partial glossectomy without elective neck dissection. Their mean age was 54.5 y (range, 23,90 y) and the male,female ratio was 1.2:1 (27 men and 23 women); 30 cases were stage I, and 20 cases were stage II. Clinicopathologic factors were analyzed to determine factors predicting late cervical lymph node metastasis. Results The overall cervical lymph node metastasis rate was 14.0% (7 of 50). Clinicopathologic factors significantly associated with the development of cervical lymph node metastasis were tumor size (,30 mm), tumor depth (,4 mm), differentiation, mode of invasion, microvascular invasion, and histologic grade of malignancy. In a multivariate logistic regression analysis, moderately differentiated squamous cell carcinoma of the tongue with tumor depth ,4 mm had predictive value for late cervical lymph node metastasis and diminished overall survival (odds ratio, 10.0; p = .02; hazards ratio, 7.0; p = .039). Conclusions The findings of this study demonstrate tumor depth ,4 mm moderately differentiated squamous cell carcinoma of the tongue have a substantially higher rate of late cervical metastases. In the basis of these data, it is our recommendation that this be used in the decision to electively treat the neck. © 2002 Wiley Periodicals, Inc. Head Neck 24: 731,736, 2002 [source] New method of dynamic color doppler signal quantification in metastatic lymph nodes compared to direct polarographic measurements of tissue oxygenationINTERNATIONAL JOURNAL OF CANCER, Issue 6 2005Thomas Scholbach Abstract Tumor growth depends on sufficient blood and oxygen supply. Hypoxia stimulates neovascularization and is a known cause for radio- and chemoresistance. The objective of this study was to investigate the use of a novel ultrasound technique for the dynamic assessment of vascularization and oxygenation in metastatic lymph nodes. Twenty-four patients (age 44,78 years) with cervical lymph node metastases of squamous cell head and neck cancer were investigated by color duplex sonography and 17 (age 46,78 years) were investigated additionally with polarography. Sonography was performed after contrast enhancer infusion under defined conditions. Intranodal perfusion data (color hue, colored area) were measured automatically by a novel software technique. This allows an evaluation of blood flow dynamics by calculating perfusion intensity,velocity, perfused area, as well as the novel parameters tissue resistance index (TRI) and tissue pulsatility index (TPI),for each point of a complete heart cycle. Tumor tissue pO2 was measured by means of polarographic needle electrodes placed intranodally. The sonographic and polarographic data were correlated using Pearson's test. Sonography demonstrated a statistically significant inverse correlation between hypoxia and perfusion and significant TPI and TRI changes with different N-stages. The percentage of nodal fraction with less than 10 mmHg oxygen saturation was significantly inversely correlated with lymph node perfusion (r = ,0.551; p = 0.021). Nodes with a perfusion of less than 0.05 cm/sec flow velocity showed significantly larger hypoxic areas (p = 0.006). Significant differences of TPI and TRI existed between nodes in stage N1 and N2/N3 (p = 0.028 and 0.048, respectively). This new method of dynamic signal quantification allows a noninvasive and quantitative assessment of tumor and metastatic lymph node perfusion by means of commonly available ultrasound equipment. © 2004 Wiley-Liss, Inc. [source] Cystic appearance of cervical lymph nodes is characteristic of metastatic papillary thyroid carcinomaJOURNAL OF CLINICAL ULTRASOUND, Issue 1 2003Ada Kessler MD Abstract Purpose The usefulness of high-resolution sonography in diagnosing cervical lymph node metastases from papillary thyroid carcinoma was investigated. The accuracy of a particular sign, cystic change within a node, in establishing the diagnosis was assessed. Methods The sonographic findings in 63 patients with enlarged cervical lymph nodes were retrospectively reviewed. The patients had undergone high-resolution gray-scale and color Doppler sonography followed by ultrasound-guided fine-needle aspiration (FNA) in all patients and surgical excision in 27 patients. Results Abnormal sonographic features were present in the lymph nodes of all 63 patients. In 14 (70%) of 20 patients with papillary thyroid carcinoma, sonography depicted cystic changes. This pattern was not found in any of the other 43 patients, in whom FNA revealed either metastasis from another malignancy (22 patients) or benign reactive lymphadenopathy (21 patients). Among the 63 patients, there were 43 true-negative, 14 true-positive, 6 false-negative, and no false-positive results in the diagnosis of metastatic papillary thyroid carcinoma using the presence or absence of an intranodal cystic area on sonography. These results yielded a 70% sensitivity, 100% specificity, 100% positive predictive value, 88% negative predictive value, and 90% overall accuracy for this criterion. Conclusions Cystic changes within a cervical lymph node are highly suggestive of metastatic papillary thyroid carcinoma. © 2002 Wiley Periodicals, Inc. J Clin Ultrasound 31:21,25, 2003 [source] Head and Neck Cancer: The Importance of Oxygen ,THE LARYNGOSCOPE, Issue 5 2000David J. Terris MD Abstract Objectives To use recently introduced polarographic technology to characterize the distribution of oxygenation in solid tumors, explore the differences between severe hypoxia and true necrosis, and evaluate the ability to predict treatment outcomes based on tumor oxygenation. Study Design Prospective, nonrandomized trial of patients with advanced head and neck cancer, conducted at an academic institution. Methods A total of 63 patients underwent polarographic oxygen measurements of their tumors. Experiment 1 was designed to determine whether a gradient of oxygenation exists within tumors by examining several series of measurements in each tumor. Experiment 2 was an analysis of the difference in data variance incurred when comparing oxygen measurements using oxygen electrodes of two different sizes. Experiment 3 compared the proportion of tumor necrosis to the proportion of very low (,2.5 mm Hg) polarographic oxygen measurements. Experiment 4 was designed to explore the correlation between oxygenation and treatment outcomes after nonsurgical management. Results No gradient of oxygenation was found within cervical lymph node metastases from head and neck squamous cell carcinomas (P > .9). Tumor measurements achieved with larger (17 ,m) electrodes displayed smaller variances than those obtained with smaller (12 ,m) electrodes, although this difference failed to reach statistical significance (P = .60). There was no correlation between tumor necrosis and the proportion of very low (,2.5 mm Hg) oxygen measurements. There was a nonsignificant trend toward poorer locoregional control and overall survival in hypoxic tumors. Conclusions Hypoxia exists within cervical lymph node metastases from head and neck squamous carcinomas, but the hypoxic regions are distributed essentially randomly. As expected, measurements of oxygen achieved with larger electrodes results in lowered variance, but with no change in overall tumor mean oxygen levels. Polarographic oxygen measurements are independent of tumor necrosis. Finally, oxygenation as an independent variable is incapable of predicting prognosis, probably reflecting the multifactorial nature of the biological behavior of head and neck cancers. [source] Adjuvant irradiation for cervical lymph node metastases from melanomaCANCER, Issue 7 2003Matthew T. Ballo M.D. Abstract BACKGROUND The risk of regional disease recurrence after surgery alone for lymph node metastases from melanoma is well documented. The role of adjuvant irradiation remains controversial. METHODS The medical records of 160 patients with cervical lymph node metastases from melanoma were reviewed retrospectively. Of these, 148 (93%) presented with clinically palpable lymph node metastases. All patients underwent surgery and radiation to a median dose of 30 grays (Gy) at 6 Gy per fraction delivered twice weekly. Surgical resection was either a selective neck dissection in 90 patients or local excision of the lymph node metastasis in 35 patients. Only 35 patients underwent a radical, modified radical, or functional neck dissection. RESULTS At a median follow-up of 78 months, the actuarial local, regional, and locoregional control rates at 10 years were 94%, 94%, and 91%, respectively. Univariate analysis of patient, tumor, and treatment characteristics failed to reveal any association with the subsequent rate of local or regional control. The actuarial disease-specific (DSS), disease-free, and distant metastasis-free survival (DMFS) rates at 10 years were 48%, 42%, and 43%, respectively. Univariate and multivariate analyses revealed that patients with four or more involved lymph nodes had a significantly worse DSS and DMFS. Nine patients developed a treatment-related complication requiring medical management, resulting in a 5-year actuarial complication-free survival rate of 90%. CONCLUSIONS Adjuvant radiotherapy resulted in a 10-year regional control rate of 94%. Complications for all patients were rare and manageable when they did occur. The authors recommend adjuvant irradiation for patients with extracapsular extension, lymph nodes measuring 3 cm in size or larger, the involvement of multiple lymph nodes, recurrent disease, or any patient having undergone a selective therapeutic neck dissection. Cancer 2003;97:1789,96. © 2003 American Cancer Society. DOI 10.1002/cncr.11243 [source] | ||||||||||