Objective To study the necessity and feasibility of No.12b lymph node dissection in D2 lymphadenectomy for advanced distal gastric cancer, and the relation between No.12b lymph node metastasis and clinicopathologic factors. Methods Clinical data of sixty cases of advanced distal gastric cancer receiving D2 or D2+ radical correction were collected retrospectively, both of which were all plus No.12b lymph node dissections. The relationships between No.12b lymph node metastasis and clinicopathologic factors were analyzed. Results No death attributed to operation or severe operative complications were found. There were 12 cases (20.00%) with No.12b lymph node metastasis. The rates of No.12b lymph node metastasis in Borrmann Ⅲ-Ⅳ types, N2-3 of lymph node metastasis and T3-4 of tumor infiltration were 31.25% (10/32), 30.30% (10/33) and 29.73% (11/37), which were significantly higher than those in Borrmann Ⅰ-Ⅱ types 〔7.14% （2/28）〕, N0-1 〔7.41% （2/27）〕 and T1-2 〔4.35% （1/23）〕 respectively (Plt;0.05). There was no relationship between tumor size and No.12b lymph node metastasis. Conclusions No.12b lymph node dissection is safe and feasible for advanced distal gastric cancer. Further perspective studies on No.12b lymph node dissection influence on prognosis in more cases are required.
Objective To investigate the diagnostic significance of fine needle aspiration cytology (FNAC) combined with BRAFV600E gene detection in the diagnosis of cervical lymph node metastasis of thyroid cancer. Methods Atotal of 140 patients with suspected cervical lymph node metastasis of thyroid cancer were collected as the research objects, and all patients were given ultrasound-guided FNAC and detection of BRAFV600E gene. The significance of the diagnosis was analyzed according to the gold standard after pathological examination. Results All the 140 patients underwent surgical treatment. For FNAC, the sensitivity was 63.6% (84/132), the specificity was 100% (8/8), the accuracy was 65.7% (92/140), the positive predictive value was 100% (84/84), and the negative predictive value was 14.3% (8/56). For detection of BRAFV600E gene, the sensitivity was 84.8% (112/132), the specificity was 100% (8/8), the accuracy was 85.7% (120/140), the positive predictive value was 100% (112/112), and the negative predictive value was 28.5% (8/28). For FNAC combined with BRAFV600E gene detection, the sensitivity was 90.9% (120/132), the specificity was 100% (8/8), the accuracy was 91.4% (128/140), the positive predictive value was 100% (120/120), and the negative predictive value was 40.0% (8/20). The area under curve of receiver operating characteristic for FNAC, detection of BRAFV600E gene, and FNAC combined with BRAFV600E gene detection were 0.818, 0.924, and 0.955, respectively. Conclusion FNAC combine with BRAFV600E gene detection improves the accuracy of neck lymph node metastasis in patients with thyroid cancer, which is worthyof performed.
ObjectiveTo explore the causes and surgical strategies of completion thyroidectomy for thyroid cancer. Method The clinical data of 35 patients with thyroid cancer who underwent completion thyroidectomy in Guizhou Provincial People’s Hospital from January 2020 to July 2022 were analyzed retrospectively. Results There were 23 females and 12 males, aged from 17 to 68 years (median 42 years). The nature of thyroid nodules in 22 patients was not determined at preoperative fine needle aspiration cytology or intraoperative frozen pathological examination, but the paraffin section examination after operation indicated thyroid cancer. Pathological examination after the first operation showed that 11 patients had a large number of lymph node metastasis in the central area (more than 5), and 2 patients were confirmed as medullary thyroid carcinoma. All the 35 patients underwent completion thyroidectomy at 5–93 days after the initial operation, among which 3 patients underwent resection of the affected side residual glandular lobe and isthmus ± ipsilateral CLN dissection, 18 patients underwent contralateral lobectomy and CLN cleaning, and 14 patients underwent contralateral lobectomy and lymph node dissection of the affected side cervical region (Ⅲ–Ⅳ region). The operative time was 45–135 min (median 105 min). Intraoperative blood loss was 10–50 mL (median 20 mL). One patient suffered from temporary recurrent laryngeal nerve injury after operation, and voice had returned to normal at 5 months after operation. Six patients showed temporary hypoparathyroidism, and serum parathyroid hormone returned to normal level in 1–3 months after symptomatic treatment. Nineteen patients were treated with iodine-131 after operation, and were followed-up for 1–16 months (median 12 months). No signs of tumor recurrence or metastasis were found. Conclusions Accurate preoperative and intraoperative evaluation of thyroid nodules and standardized surgery can reduce the incidence of completion thyroidectomy. For patients who really need completion thyroidectomy, adequate doctor-patient communication during the perioperative period, early response measures and appropriate completion thyroidectomy can reduce the probability of postoperative tumor recurrence and improve the survival of patients.
ObjectiveTo predict the probability of lymph node metastasis after thoracoscopic surgery in patients with lung adenocarcinoma based on nomogram. MethodsWe analyzed the clinical data of the patients with lung adenocarcinoma treated in the department of thoracic surgery of our hospital from June 2018 to May 2021. The patients were randomly divided into a training group and a validation group. The variables that may affect the lymph node metastasis of lung adenocarcinoma were screened out by univariate logistic regression, and then the clinical prediction model was constructed by multivariate logistic regression. The nomogram was used to show the model visually, the receiver operating characteristic (ROC) curve, calibration curve and clinical decision curve to evaluate the calibration degree and practicability of the model. ResultsFinally 249 patients were collected, including 117 males aged 53.15±13.95 years and 132 females aged 47.36±13.10 years. There were 180 patients in the training group, and 69 patients in the validation group. There was a significant correlation between the 6 clinicopathological characteristics and lymph node metastasis of lung adenocarcinoma in the univariate logistic regression. The area under the ROC curve in the training group was 0.863, suggesting the ability to distinguish lymph node metastasis, which was confirmed in the validation group (area under the ROC curve was 0.847). The nomogram and clinical decision curve also performed well in the follow-up analysis, which proved its potential clinical value. ConclusionThis study provides a nomogram combined with clinicopathological characteristics, which can be used to predict the risk of lymph node metastasis in patients with lung adenocarcinoma with a diameter≤3 cm.
Objective To study the relationship between early gastric cancer and MiB-1 expression. Methods Resected early gastric cancer from 99 cases were studied by immunohistochemical method. Results MiB-1 proliferation index (MiB-1 PI) was related to patient ’s age, tumor size, location and depth of invasion. MiB-1 PI was higher in differentiated adenocarcinomas than in undifferentiated adenocarcinomas(P＜0.01). Cancers with lymphatic vessel invasion or lymph node metastasis had higher MiB-1 PI (P＜0.05). The postoperative survival was related to MiB-1 proliferation grade (MiB-1 PG), being higher in MiB-1 PG 1,2 grade than that in MiB-1 PG 3,4 grade. Conclusion Even in the early stage of gastric cancer, tumor proliferation activity was related to patients’ prognosis.
Systematic lymph nodes dissection has been a standard procedure in lung cancer surgery, while the manipulation of mediastinal lymph nodes for early stage lung cancer remains controversial since surgeons have been weighing the advantages and disadvantages of different methods of lymph node dissection. With an increasing in early stage non-small cell lung cancer patients in recent years, there are more and more intensive studies especially focusing on the mediastinal lymph nodes dissection of clinical stage ⅠA lung cancer. In this review, the lymph nodes management of clinical stage ⅠA non-small cell lung cancer, especially systematic lymph nodes dissection and sampling as well as lobe-specific lymph node dissection, are summarized.
ObjectiveTo investigate the influencing factors of cervical lymph node metastasis of papillary thyroid carcinoma (PTC) and provide more accurate guidance for the cleaning strategy of PTC cervical lymph node.MethodsRetrospectively analyzed the case data of pathological diagnosis of PTC patients from June 2013 to June 2019 in Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, and explored the influencing factors of lymph node metastasis in central region and lymph node metastasis in lateral cervical region.ResultsThe results of multivariate analysis showed that patients aged ≤55 years old, tumor diameter >1 cm, peripheral invasion, bilateral cancer, and multifocal cancer had a higher lymph node metastasis rate in the central region (P<0.05). When the number of risk factors mentioned above was 0, 1, 2, 3, 4, 5 and 6, the lymph node metastasis rate in the central region was respectively: 3.5% (4/113), 25.2% (72/286), 30.0% (70/233), 38.6% (76/197), 52.5% (53/101), 76.9% (20/26), and 100% (13/13). With the increase of the number of risk factors, the lymph node metastasis rate in central region increased (χ2=236.894, P<0.001). In the lymph node metastasis in lateral cervical region, multivariate analysis showed that patients with tumor diameter >1 cm, membranous invasion, and lymph node metastasis in the central region ≥2 had a higher lymph node metastasis rate (P<0.05), while lymph node metastasis in the lateral cervical region was not related to age, gender, peripheral invasion, and multifocal carcinoma (P>0.05). When the cumulative number of risk factors in patients was 0, 1, 2, 3, 4, 5, and 6, the lymph node metastasis rate in the lateral cervical region was respectively: 11.1% (1/9), 29.4% (5/17), 79.2% (19/24), 89.6% (43/48), 96.4% (27/28), 100% (21/21), and 100% (3/3). With the increase in the number of risk factors, lymph node metastasis in the lateral cervical region increased (χ2=101.094, P<0.001).ConclusionsThe cervical lymph node metastasis is positively correlated with the number of corresponding risk factors. With the increase of risk factors, cervical lymph node metastasis rate also increases. The number of risk factors provides a simple and intuitive indicator for cervical lymph node metastasis, which is more conducive to the formulation of individualized and accurate surgical program.
Objective To investigate the effect of radiotherapy after neoadjuvant chemotherapy and modified radical surgery on breast cancer specific survival (BCSS) of patients with stage cT1–2N1M0 breast cancer. Methods A total of 917 cT1–2N1M0 stage breast cancer patients treated with neoadjuvant chemotherapy and modified radical surgery from 2010 to 2017 were extracted from the The Surveillance, Epidemiology, and End Results (SEER) database. Of them 720 matched patients were divided into radiotherapy group (n=360) and non-radiotherapy group (n=360) by using propensity score matching (PSM). Cox proportional hazard regression model was used to explore the factors affecting BCSS. Results Patients were all interviewed for a median follow-up of 65 months, and the 5-year BCSS was 91.9% in the radiotherapy group and 93.2% in the non-radiotherapy group, there was no significant difference between the 2 groups (χ2=0.292, P=0.589). The results were the same in patients with no axillary lymph node metastasis, one axillary lymphnode metastasis, two axillary lymph node metastasis and 3 axillary lymph node metastasis group (χ2=0.139, P=0.709; χ2=0.578, P=0.447; χ2=2.617, P=0.106; χ2=0.062, P=0.803). The result of Cox proportional hazard regression analysis showed that, after controlling for Grade grade, time from diagnosis to treatment, efficacy of neoadjuvant chemotherapy, number of positive axillary lymph nodes, molecular typing, and tumor diameter at first diagnosis, radiotherapy had no statistically significant effect on BCSS [HR=1.048, 95%CI (0.704, 1.561), P=0.817]. Conclusions The effect of radiotherapy on the BCSS of patients with stage cT1–2N1M0 breast cancer who have received neoadjuvant chemotherapy and modified radical surgery with 0 to 3 axillary lymph nodes metastases is limited, but whether to undergo radiotherapy should still be determined according to the comprehensive risk of individual tumor patients.
ObjectiveTo summarize the research progress of ultrasmall superparamagnetic iron oxide (USPIO) enhanced magnetic resonance imaging (MRI) in normal-sized lymph node metastasis of colorectal cancer.MethodThe relevant literatures published recently at domestic and abroad about USPIO enhanced MRI in normal-sized lymph node metastasis of colorectal cancer were collected and reviewed.ResultsUSPIO, a kind of lymph node targeted magnetic resonance contrast agent, could be used to evaluate lymph node metastasis of malignant tumors. USPIO enhanced MRI could detect normal-sized lymph node metastasis in colorectal cancer effectively compared with normal MRI. It provided a higher diagnostic performance than normal enhanced MRI. In addition, USPIO enhanced MRI could also distinguish inflammatory and metastatic lymph nodes better that were difficult to be distinguished by normal enhanced MRI.ConclusionUSPIO enhanced MRI shows a certain potential for clinical application in detecting normal-sized lymph node metastasis of colorectal cancer, but it has not been widely used in China.
ObjectiveTo summarize the clinicopathological characteristics of papillary thyroid cancer (PTC) in adolescents and analyze the risk factors affecting lateral lymph node metastasis and prognosis. MethodsIn retrospectively, 150 adolescent PTC patients admitted to the Department of Thyroid Surgery of the First Affiliated Hospital of Zhengzhou University from January 2012 to January 2022 and meeting the inclusion and exclusion criterias were collected as the study subjects (adolescent group), and 100 adult PTC patients were selected as adult group. Statistical analysis was performed with SPSS 25.0 software to compare the clinicopathological characteristics of the patients in the two groups, and to explore the risk factors for lateral lymph node metastasis and recurrence in adolescent PTC patients by using logistic regression and Cox proportional hazards regression models, respectively. ResultsAdolescents with PTC were more prone to extrandular invasion [30.0% (45/150) versus 17.0% (17/100), P=0.020], neck lymph node metastasis [79.3% (119/150) versus 48.0% (48/100), P<0.001], central lymph node metastasis [78.7% (118/150) versus 48.0% (48/100), P<0.001], lateral lymph node metastasis [44.0% (66/150) versus 12.0% (12/100), P<0.001]; and had a greater maximum tumor diameter (1.75 cm versus 0.75 cm, P＜0.001) and higher ratio of greater maximum tumor diameter ＞2 cm [45.3% (68/150) versus 8.0% (8/100), P＜0.001] in adolescent PTC patients. In adolescent PTC patients, extraglandular invasion (OR=2.654, P=0.022), multifoci (OR=4.860, P<0.001) and maximum tumor diameter>2 cm (OR=3.845, P=0.001) were risk factors for lateral lymph node metastasis; lateral lymph node metastasis (RR=10.105, P=0.040) and distant metastasis (RR=7.058, P=0.003) were predictors of postoperative recurrence in adolescent PTC patients. ConclusionsCompared with adult PTC patients, adolescent PTC patients have more aggressive tumors. Adolescent PTC with extraglandular invasion, multilesions, and maximum tumor diameter>2 cm should be considered for lateral lymph node dissection; and adolescent PTC patients with lateral lymph node metastasis and distant metastasis should pay close attention to their recurrence status.