The diagnostic frequency of multiple pulmonary tumor nodules has increased significantly in clinical practice. Among patients with multiple pulmonary nodules, distinguishing between separate primary lung carcinomas and intrapulmonary metastases is critical for accurate tumor staging, therapeutic decision-making, and prognostic evaluation. The consensus document "Differentiating separate primary lung adenocarcinomas from intrapulmonary metastases with emphasis on pathological and molecular considerations: Recommendations from the International Association for the Study of Lung Cancer Pathology Committee" highlights the pivotal role of integrated pathological and molecular analyses in diagnosing and differentiating primary lung adenocarcinomas from intrapulmonary metastatic lesions. It further proposes a combined four-step histologic and molecular classification algorithm for addressing multiple pulmonary tumor nodules of adenocarcinoma histology, providing clinicians with enhanced diagnostic tools to refine staging accuracy, guide therapeutic strategies, and improve prognostic predictions for lung adenocarcinoma. Building on current advancements in global research, this article offers a comprehensive interpretation of the consensus recommendations.
ObjectiveTo analyze the feasibility, advantages and disadvantages of the fluorescence method and the inflation-deflation method in defining the intersegmental plane during thoracoscopic lung segmental resection.MethodsFrom February to October 2018, 60 patients underwent thoracoscopic anatomical segmentectomy in Thoracic Surgery Department of Nanjing Chest Hospital, with 28 males and 32 females, aged from 25 to 82 years. Three-dimension computed tomography bronchography and angiography was used to reconstruct pulmonary vessels, bronchus and virtual intersegmental plane. Among them, 20 patients used the fluorescence method to define the intersegmental plane, and the other 40 patients used the traditional inflation-deflation method to define the intersegmental plane.ResultsFluorescent injection of indocyanine green (ICG) showed a clear intersegmental line with a duration sufficient to complete the label. With the fluorescence method, the intersegmental plane occurrence time was significantly shortened (10.75±3.78 s vs. 988.00±314.24 s, P<0.001) and had satisfactory repeatability. The lungs did not need to be inflated, which was convenient for the operation. And the operation time was shortened (108.75±31.28 min vs 138.00±32.47 min, P=0.002). No obvious ICG injection-related concurrency symptoms was found.ConclusionCompared with the traditional inflation-deflation method, the fluorescence method can display the intersegmental line quickly, accurately and clearly, reduce the difficulty of surgery, shorten the operation time, and provide reliable technical support for thoracoscopic anatomical segmentectomy. The fluorescence is a safe and effective method that is worthy of clinical application.
Lung cancer is the most common cancer worldwide. The outcome and management of lung cancer patients could be improved by early diagnosis and prognosis. MicroRNAs (miRNAs) have been implicated in signaling pathways regulating a variety of biological processes and play important roles in the development of carcinoma. Moreover, miRNAs can exist in the circulation in a remarkably stable form. All of these suggest miRNAs as new potentially clinical biomarkers for diagnosis and prognosis of lung cancer. In this review, we aim to discuss diagnostic and prognostic value and potential clinical utility of miRNAs in serum.
ObjectiveTo investigate the clinical features, diagnosis, treatment and prognosis of pulmonary tumor thrombotic microangiopathy (PTTM).MethodsA patient with PTTM was reported. Literatures about PTTM searched by WanFang databases and PubMed were reviewed for its clinical characteristics.ResultsA 62-year-old female was admitted with chief complaint of dry cough, dyspnea and hemoptysis. Progressive dyspnea, pulmonary hypertension and hypoxemia occurred during hospitalization. Computed tomography angiography (CTA) of the lung excluded pulmonary embolism. Peripheral blood appearing a large number of late erythroblasts and erythrocyte debris and progressively decreasing platelets suggested that the patient suffer from thrombotic microvascular disease. CT showed widely metastatic lesions at the vertebrae and sternum. On the basis of above clinical characteristics, PTTM was diagnosed clinically. Although the patient accepted respiratory support therapy, anticoagulation therapy and resuscitation, she still died 5 days later after hospitalization. Literatures about PTTM with complete clinical information were reviewed. A total of 92 PTTM cases were reviewed and the main reasons of these patients admitted were progressive dyspnea and chronic cough. During hospitalization, they all suffered varying degrees of hypoxia, while radiological findings of the lungs lack specificity. No abnormal sighs were found by lung CTA. The results of ultrasonic cardiography or the Swan–Ganz catheter indicated varying degrees of pulmonary hypertension, some patients were proved with disseminated intravascular coagulation and/or microangiopathic hemolytic anemia. The definite diagnosis of PTTM depended on the histologic evidence which were often obtained from post-mortem examination, because many patients couldn’t tolerate the lung biopsy due to rapid aggravation. The treatment of PTTM included respiratory support therapy, anticoagulation therapy, antipulmonary hypertension and the chemotherapy of primary or metastatic tumour. The prognosis of PTTM was poor and almost all of the patients died in a short term, ranged from 48 hours to 3 months.ConclusionIf a patient with a history of cancer or evidence of cancer metastasis has hypoxemia and pulmonary hypertension but without abnormal lung CTA signs, PTTM should be considered.
目的：运用多层螺旋CT（MSCT）后处理技术显示周围性肺癌与支气管关系，分析其影像表现及诊断价值。方法：采用MSCT对77例周围性肺癌行层厚为0.5 mm的容积靶扫描，通过多平面或曲面重建（MPR或CMRP）以及表面遮盖（SSD）法显示支气管与周围肿块的关系,CT影像表现与手术、病理对照。结果：（1）全部3～7级支气管均全程、较完整显示。42例腺癌中与支气管有关系者为39例（92.9％），20例鳞癌中为15例（75.0％）。（2）肿瘤—支气管关系可分为4型：Ⅰ型，支气管被肿块截断；Ⅱ型，支气管进入肿块内后被截断；Ⅲ型，支气管在肿块内保持通畅；Ⅳ型，支气管紧贴肿块边缘走行，形态正常或受压移位。（3）发生率：Ⅰ型为48.1％（37/77），其中鳞癌略多于腺癌；Ⅱ型为13.0%（10/77），其中鳞癌略多于腺癌；Ⅲ型为16.9％（13/77），仅见腺癌；Ⅳ型为15.6％（12/77），腺癌略多于鳞癌。（4）与第四级支气管相关的肿块，鳞癌多于腺癌；与第六级支气管相关的肿块，腺癌多于鳞癌。结论：采用MSCT超薄层靶扫描后行MPR、CMPR和SSD重建，能准确显示肿块与支气管关系，并反映一定的病理改变关系，对良恶性鉴别或长期预后等相关性研究有着重要意义。
ObjectiveTo investigate the feasibility and safety of DynaCT microwave ablation (MWA) guided by 3D iGuide puncture technology for lung cancer.MethodsThe clinical data of 19 patients with primary or metastatic lung cancer who underwent DynaCT MWA from June 2019 to December 2020 in our hospital were retrospectively analyzed, including 15 males and 4 females with an average age of 64.9±11.7 years. The technical success rates, adverse reactions and complications, postoperative hospital stay, and local therapeutic efficacy were recorded.ResultsTechnical success rate was 100.0%. The mean time required to target and place the needle was 15.7±3.7 min and the mean ablation time was 5.7±1.6 min. Thirteen patients underwent biopsy synchronously before the ablation, and 10 (76.9%) patients had positive pathological results. The main adverse reactions were pain (7/19, 36.8%), post-ablation syndrome (4/19, 21.1%) and cough (2/19, 10.5%). The minor complications were pneumothorax (6/19, 31.6%), hemorrhage (5/19, 26.3%), pleural effusion (2/19, 10.5%) and cavity (1/19, 5.3%). Three patients had moderate pneumothorax and received closed thoracic drainage. The median hospitalization time after ablation was 2.0 (2.0, 3.0) d, and no patient died during the perioperative period. The initial complete ablation rate was 89.5% (17 patients) and the incomplete ablation rate was 10.5% (2 patients) at 1-month follow-up, and no local progression was observed.ConclusionDynaCT MWA of lung cancer under the guidance of 3D iGuide system is safe and feasible with a high short-term local control rate, but the long-term efficacy remains to be further observed.
ObjectiveTo explore the effects of rehabilitation therapy on postoperative pulmonary function and exercise capacity of patients with lung cancer during the hospitalization in the setting of enhanced recovery after surgery (ERAS) protocols.MethodsA total of 110 lung cancer patients undergoing thoracoscopic lobectomy in the Department of Thoracic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine from September 2017 to December 2018 were randomly divided into the rehabilitation treatment group (the trial group, n=54) and the non-rehabilitation treatment group (the control group, n=56). The trial group got out of bed within 24 hours after surgery and performed respiratory rehabilitation training. The control group did not receive rehabilitation after surgery. Pulmonary function and 6-minute walking distance (6MWD) were evaluated preoperatively and prior to discharge in both groups to compare the differences in pulmonary function and exercise capacity between the two groups.ResultsThe preoperative forced vital capacity (FVC) in the trial group and the control group were (2.45±0.57) and (2.47±0.61) L, respectively; the forced expiratory volume in the first second (FEV1) were (2.29±0.55) and (2.22±0.55) L, respectively; 6MWD were (592±51) and (576±57) m, respectively; the differences between the two groups were not statistically significant (P>0.05). Prior to discharge, the FVC in the trial group and the control group were (1.43±0.36) and (1.19±0.33) L, respectively; FEV1 were (1.28±0.32) and (1.06±0.61) L, respectively; 6MWD were (264±43) and (218±37) m, respectively. The results of pre-discharge evaluation were significantly lower than those of preoperative evaluation (P<0.01). The pre-discharge FVC, FEV1, and 6MWD in the trial group were significantly superior to those in the control group (P<0.01).ConclusionIn the setting of ERAS protocols, postoperative rehabilitation therapy during hospitalizations can improve pulmonary function and promote the recovery of exercise capacity in lung cancer patients more effectively.
目的总结肺硬化性血管瘤临床特点、诊断及外科治疗的经验。 方法回顾性分析2008年5月至2010年3月南京医科大学第一附属医院胸心外科行手术治疗22例肺硬化性血管瘤患者的临床资料，其中男1例、女21例，发病年龄18～75（53.5±15.1）岁。22例均行手术治疗，包括开胸手术12例，胸腔镜或胸腔镜辅助小切口手术10例；肺叶切除术12例，限制性肺切除术10例。 结果肿瘤大小与症状无显著相关性（P=0.848），中央型与外周型症状发生率差异无统计学意义（P=0.35）。手术时间55～138（100.5±27.3）min，住院时间12～52（20.9±8.2）d，无手术并发症及手术死亡。随访6～42（26±16）个月，患者均生存，无肿瘤复发及转移。 结论肺硬化性血管瘤临床及影像学检查缺乏特征性，手术是治疗肺硬化性血管瘤的有效措施。
ObjectiveTo investigate the predictive value of preoperative radiological features on spread through air spaces (STAS) in stage cⅠA lung adenocarcinoma with predominant ground-glass opacity, and to provide a basis for the selection of surgical methods for these patients.MethodsThe clinical data of 768 patients with stage cⅠA lung adenocarcinoma undergoing operation in our hospital from 2017 to 2018 were reviewed, and 333 early stage lung adenocarcinoma patients with predominant ground-glass opacity were selected. There were 92 males and 241 females, with an average age of 57.0±10.0 years. Statistical analysis was performed using SPSS 22.0.ResultsSTAS-positive patients were mostly invasive adenocarcinoma (P=0.037), and had more micropapillary component (P<0.001) and more epidermal growth factor receptor (EGFR) gene mutations (P=0.020). There were no statistically significant differences between the STAS-positive and STAS-negative patients in other clinicopathological features. Univariate analysis showed that the maximum diameter of tumor in lung window (P=0.029), roundness (P=0.035), maximum diameter of solid tumor component in lung window (P<0.001), consolidation/tumor ratio (CTR, P<0.001), maximum area of the tumor in mediastinum window (P=0.001), tumor disappearance ratio (TDR, P<0.001), average CT value (P=0.001) and lobulation sign (P=0.038) were risk factors for STAS positive. Multivariate logistic regression analysis showed that the CTR was an independent predictor of STAS (OR=1.05, 95%CI 1.02 to 1.07, P<0.001), and the area under the receiver operating characteristic (ROC) curve was 0.71 (95%CI 0.58 to 0.85, P=0.002). When the cutoff value was 19%, the sensitivity of predicting STAS was 66.7%, and the specificity was 75.2%.ConclusionCTR is a good radiological feature to predict the occurrence of STAS in early lung adenocarcinoma with predominant ground-glass opacity. For the stagecⅠA lung adenocarcinoma with predominant ground-glass opacity and CTR ≥19%, the possibility of STAS positive is greater, and sublobar resection needs to be carefully considered.
目的 探讨原发性肺印戒细胞腺癌（PSRCACL）的临床病理学特点、诊断与鉴别诊断及其预后因素等。 方法 收集2000年1月－2012年6月间50例PSRCACL患者的临床资料，进行组织学及免疫组织化学检测观察，并进行随访和结合文献复习分析。 结果 PSRCACL的临床症状及影像学表现与非小细胞肺癌无明显差异，其诊断与鉴别诊断依据其特殊的细胞形态学及免疫组织化学检测。PSRCACL的发病率约占肺腺癌的1.20%，平均发病年龄为53.3岁，中位年龄为54.5岁，男女比例为1.17︰1。患者的中位生存时间约为56个月，1年生存率约为85.4%，3年生存率约为67.4%，5年生存率约为40.9%。患者的生存率与患者的性别、年龄无关（P＞0.05），与肿瘤的大小、是否伴有癌转移及TNM分期有关（P＜0.05）。 结论 PSRCACL是一种比较罕见的、好发于中青年人、恶性程度较高、易发生侵袭和转移、预后较差的恶性上皮性肿瘤，除手术治疗外，目前尚无标准化疗方案。