Resected Nodes Research Articles

The impact and correlation of lymphadenectomy with outcomes in patients with uterine sarcoma: A systematic review

Background: Sarcomas are an uncommon type of smooth muscle tumors in the uterus. The most popular form of treatment for uterine sarcomas is surgery. There is disagreement, nonetheless, over the best course of action for initial surgery. The aim of this systematic review was to examine the potential association between patient outcomes and the effects of LAD in individuals diagnosed with uterine sarcoma. Method: We conducted a comprehensive search of the PubMed database to identify publications assessing the impact of LAD on patients with uterine sarcoma that were published between 2009 and 2024. Based on the references in the studies that we included, we also conducted a search of the PubMed database. To find more relevant studies, the bibliographies of each pertinent paper were thoroughly reviewed. This review only includes studies that were published in English. Results: We included 7 papers in this systematic review, totaling 7896 patients. Four publications examined ESS, four studies examined LMS, two articles examined adenosarcoma, one study examined carcinosarcoma, and one study examined rhabdomyosarcoma. For individuals with low-grade ESS or adenosarcoma, LAD was not linked to a better prognosis. The survival rate was lower for patients with leiomyosarcoma who had LAD. Those who had LAD and had high-grade undifferentiated ESS fared better. LAD did not significantly correlate with RFS or OS in uterine sarcoma patients. Conclusion: Resection of lymph nodes or LAD has minimal potential benefit in terms of prognosis and clinical value.

Left inguinal dedifferentiated liposarcoma and primary unclassified sarcoma of the left lung as synchronous multiple sarcomas: a case report

BackgroundPulmonary nodules in patients with soft tissue sarcomas are likely pulmonary metastases, whereas synchronous primary pulmonary sarcomas are rare. Without surgery, determining whether a solitary pulmonary nodule is a primary or metastatic nodule is difficult. Herein, we report a rare case of a primary pulmonary sarcoma that presented synchronously with a primary dedifferentiated liposarcoma.Case presentationA 77-year-old man presented to another hospital with left inguinal swelling and a suspected recurrent inguinal hernia. Computed tomography revealed a left inguinal mass and pure-solid nodule in the left lung and the patient was referred to our hospital for detailed examination and treatment. The inguinal mass was pathologically diagnosed as a dedifferentiated liposarcoma using needle biopsy, whereas bronchoscopic biopsy revealed histological findings suggestive of a sarcoma; however, the primary site could not be determined. Positron emission tomography–computed tomography revealed no high-accumulation lesions except for the two sarcomas. We decided to perform surgery on both sarcomas for diagnostic and curative purposes. The surgical specimens showed that the two sarcomas were different. Based on the immunohistochemical staining findings of MDM2, a left inguinal dedifferentiated liposarcoma and primary pulmonary unclassified sarcoma were diagnosed. The patient displayed no evidence of recurrence 1 year after surgery.ConclusionsWe encountered a rare case of synchronous multiple primary sarcomas, one presenting in the lung and the other in the soft tissue. Surgery was required to achieve a definitive diagnosis for the patient, who achieved disease-free survival at 1 year. This case suggests that proactive resection of pulmonary nodules in patients with soft tissue sarcomas may be feasible as a diagnostic treatment if complete resection is achieved.

Laparoscopic extraperitoneal approach for lateral lymph node dissection for patients with metachronous lateral pelvic lymph node metastases following surgery for rectal cancer: a case series and short-term outcomes.

There have been few reports of a totally extraperitoneal approach for laparoscopic lateral lymph node dissection (LLND) for patients with metachronous lateral pelvic lymph node metastases following surgery for rectal cancer. Therefore, this study reports the short-term outcomes of LLND via an extraperitoneal approach. A total of 10 patients underwent LLND through a laparoscopic extraperitoneal approach in our hospital since October 2018. Patients with suspected resectable lateral lymph node recurrence after surgery for rectal cancer on computed tomography (CT), magnetic resonance imaging (MRI), or positron emission tomography CT (PET-CT) were selected for this procedure. Nine of the 10 cases were completed using this procedure, but one case was converted to an intraperitoneal approach. The median operative time was 231min, and the median estimated blood loss was 10ml. There was one case of wound infection, but no other postoperative complications were seen. In one patient, no metastases were found in the retrieved lymph nodes. The short-term outcomes of LLND through a laparoscopic extraperitoneal approach were acceptable. Because this procedure can be performed without violating the peritoneum, it is less invasive than the conventional intraperitoneal approach and is useful for metachronous lateral pelvic lymph node metastases.

Early outcomes of robotic versus video-thoracoscopic anatomical segmentectomy: a propensity score-matched real-world study.

Minimally invasive anatomic segmentectomy for the resection of pulmonary nodules has significantly increased in the last years. Nevertheless, there is limited evidence on the safety and feasibility of robotic segmentectomy compared to video-assisted thoracic surgery. This study aimed to compare the real-world early outcomes of robotic and video-thoracoscopic in anatomic segmentectomy. Single centre cohort study including all consecutive patients undergoing segmentectomy by either robotic or video-thoracoscopic from June 2018 to November 2023. Propensity score case matching analysis generated two matched groups undergoing robotic or video-thoracoscopic segmentectomy. Short-term outcomes were analysed and compared between groups. 204 patients (75 robotic and 129 video-thoracoscopic patients) were included. After matching, 146 patients (73 cases in each group) were compared. One 30-day death was observed in the robotic group (P = 1). Two conversions to thoracotomy occurred in the robotic, and none in the video-thoracoscopic group (P = 0.5). Surgical time was longer in the robotic group (P = 0.091). There were no significant differences between robotic and video-thoracoscopic groups in postoperative complications (13.7% vs 15.1%, P = 1), cardiopulmonary complications (6.8% vs 6.8%, P = 1), major complications (4.1% vs 4.1%, P = 1), prolonged air leak (4.1% vs 5.5%, P = 1), arrythmia (1.4% vs 0%, P = 1) and reoperation (2.7% vs 2.7%, P = 1). Median length of stay was 3 days (IQR, 2-3 days) in the robotic group vs 3 days (IQR, 2.5-4 days) in the video-thoracoscopic group (P = 0.212). Robotic segmentectomy is a safe and feasible alternative to video-thoracoscopy, as no significant differences in early postoperative outcomes were found between the two techniques.

Exploring the Potential of Robotic Single-Port Surgery for Gallbladder Cancer: Initial Insights and Future Prospects.

Robotic surgery has demonstrated outcomes comparable or superior to open and laparoscopic surgeries for extended cholecystectomy.1-8 Despite its advantages, the minimally invasive robotic single-port (SP) system remains underutilized in complex hepatobiliary pancreatic surgery due to instrument limitations and retraction issues.9,10 This study evaluated the feasibility, safety, and effectiveness of the da Vinci SP system in gallbladder cancer surgery. The study was approved by the Ethics Committee of OOO University Hospital (IRB no. DAUH IRB-24-081) and conducted in accordance with the principles of the Declaration of Helsinki. The requirement for informed consent was waived due to the study's retrospective design. A 62-year-old woman with a diagnosis of gallbladder cancer was referred for surgery. Preoperative computed tomography (CT) scans showed no evidence of metastasis (T2N0). Therefore, a robotic SP extended cholecystectomy was planned. Figure 1 shows a 30-mm SP port and a 1-mm assistant port inserted for the procedure. Due to the absence of an energy device for the liver wedge resection, Maryland bipolar forceps were used, mimicking the Kelly clamp crushing technique. A monopolar cautery hook was used for lymph node resection of stations 7, 8, 12, and 13 (Fig. 2). Fig. 1 Port placement for robotic extended cholecystectomy using the da Vinci Xi system Fig. 2 Demonstration of full lymph node dissection RESULTS: The total duration of the operation was 226 min, with an estimated blood loss of 200 ml. The CT scan on day 5 showed no abnormalities, and the patient was discharged routinely on day 7 (Fig. 3). The pathologic examination confirmed adenocarcinoma (T2a) with clear resection, and all six lymph nodes tested negative for malignancy. Fig. 3 The wound 2 weeks after surgery CONCLUSIONS: This study underscores the adequacy of robotic surgeries and emphasizes the potential of the da Vinci SP system in hepatobiliary surgery. Despite current challenges related to instrument limitations, the authors are confident that the SP system will evolve into a crucial asset for hepatobiliary surgical practices in the foreseeable future.

Microwave Ablation after VATS in Patients with Multiple Pulmonary Nodules.

The management of residual nodules after video-assisted thoracoscopic surgery (VATS) for multiple pulmonary nodules (MPNs) is challenging. Microwave ablation (MWA), which is highly repeatable and minimally invasive, has garnered widespread attention in the treatment of MPNs. Ninety-one patients with MPNs who underwent VATS for resection of high-risk nodules followed by MWA for residual nodules were examined. Clinical efficacy and complications were assessed. The primary end points were MWA success rate and complete ablation rate. Secondary end points were local progression-free survival (LPFS), overall survival (OS), and complications. MWA was successfully completed in all patients. Mean tumor diameter, ablation time, and ablation output power were 0.81 cm, 3.4 minutes, and 39 W, respectively. LPFS was 100% at 3, 6, 12, and 24 months, respectively. OS was 100% at 12 and 24 months, respectively. No intraoperative or postoperative deaths occurred. Complications with MWA were infrequent. Pneumothorax was most common, occurring in 31 patients (34.07%); among these, seven (7.69%) required closed thoracic drainage. Pleural effusion occurred in six patients (6.59%), hydropneumothorax in five (5.49%), and pneumonia in three (3.30%). The pain level after MWA was moderate-to-severe in 29 patients (31.87%). MWA is safe and feasible for treating residual nodules in patients with MPNs who have undergone VATS. The incidence of complications was low, and most complications were mild.

6402 Unsuspected Bladder Mass Turns Out To Be A Paraganglioma

Abstract Disclosure: S. Lamichhane: None. A. Flowers: None. D.T. Price: None. A. Kaur: None. Background: Urinary bladder (UB) paragangliomas are extremely rare tumors comprising of less than 0.05% of all bladder neoplasms and 10% of all paragangliomas. The diagnosis is usually suspected based on clinical features of painless hematuria, episodic headaches, hypertension, palpitations associated with micturition or bladder and confirmed biochemically by elevated urinary and/or plasma fractionated metanephrines (MN). Here, we present a case of a UB mass that was initially diagnosed on biopsy and subsequent biochemical workup revealed elevated MN. Case Report: A 64-year-old man with type 2 diabetes and hypertension, admitted for revision surgery of subdural hematoma was incidentally found to have a 3.3 x 3.4 x 3.9 cm polypoid heterogenous hyper enhancing UB mass attached to the anterior wall on CT abdomen done for abdominal pain. Cystoscopy and TURBT were complicated by hypertensive urgency. Pathology turned out to be paraganglioma. Detailed history at this time revealed a long-standing history of frequency, urgency, nocturia 4 times nightly, recurrent urinary tract infections, an episode of gross hematuria 1-2 years ago, and difficulty controlling blood pressure on 4 anti-hypertensives. Subsequently, labs showed plasma free MN of 97 pg/ml (ref range <=57), free normetanephrine (NMN) of 2392 pg/ml (ref range <=148), and total MN of 2489 pg/ml (ref range <=205). Genetic panel was negative for SDHA, SHD, AF2, SDHB, SHDC, SDHD, VHL, RET, TMEM127. He received 6 doses of Lantreotide due to suspicion of metastasis based on abdominal, pelvic, and inguinal lymphadenopathy seen on DOTATATE scan. After preparation with alpha and beta blockers, he underwent uneventful robot-assisted cystectomy with lymph node resection that resulted in a well-differentiated paraganglioma negative for margins, lymph node involvement, and extra bladder extension. A week later, MN reduced, plasma free MN 37 pg/ml, free NMN 178 pg/ml, and total plasma MN 215 pg/ml. His BP improved, and micturition-induced palpitations resolved. Conclusion: Due to the rarity of UB paraganglioma, the diagnosis can be missed and delayed. This has a serious implication due to the risk of hypertensive crisis during the surgery and increased risk of cardiovascular complications. This case highlights the need for awareness among physicians of the clinical presentation associated with UB paraganglioma, its early recognition and management. Presentation: 6/2/2024

7667 Cushing’s Puzzle: Echinococcal Pituitary Cyst In A Rare Encounter

Abstract Disclosure: E. Sari: None. F. Erenler: None. Introduction: Echinococcus is a rare parasitic infection endemic in the Mediterranean, Middle East, South America and Africa, which can cause cystic disease in several organs. Central nervous system involvement is known to comprise 1-2% of all cystic echinococcal disease. Hereby, we report a case of an opportunistic pituitary echinococcus infection in a patient with hypercortisolism due to adrenocortical adenoma with initial misdiagnosis of Cushing’s disease. Clinical Case: A 40-year-old South American female with poorly controlled T2DM on oral agents and hypertension presented to the ER with abdominal pain and subsequent CT of the abdomen with contrast showed a right adrenal mass measuring up to 2.8 cm. A follow up CT with adrenal protocol confirmed 3.3 cm right adrenal mass, 46 HU in precontrast images with >50% washout. Review of records revealed that a recent MRI brain with contrast was performed for headache evaluation and showed an incidental 5x7x4 mm lesion in the pituitary gland. Endocrinology evaluation revealed 24-hour urine volume 1800 mL, elevated free cortisol levels 277.6 mcg/24hr (RR: 4.0-50.0 mcg/24hr), creatinine of 0.67g/24hr (RR: 0.50-2.15g/24hr). 1 mg dexamethasone suppression test showed AM cortisol of 28.7 mcg/dL. ACTH was elevated at 67 pg/mL (RR: 6-50 pg/mL). FSH, LH, and GH were normal. Presumed diagnosis of ACTH-dependent hypercortisolism was made and she underwent bilateral inferior petrosal sinus sampling with confirmed successful cannulation but this was inconclusive due to low ACTH levels. Follow-up MRI of the pituitary gland showed T1 bright, T2 isointense circumscribed lesion measuring 7x6x3 mm at anterior pituitary gland with a thin rim of peripheral enhancement consistent with cystic features. She underwent transsphenoidal resection of the pituitary lesion and the pathology specimen showed parasites consistent with echinococcosis. Infectious disease was consulted, and the patient started on albendazole. Post-operative laboratory evaluation was notable for persistently elevated AM cortisol, 24-hour urine free cortisol levels, and low ACTH levels, confirming ACTH independent hypercortisolism. She underwent right adrenal nodule resection and pathology was consistent with adrenocortical adenoma. Post-adrenalectomy AM cortisol levels were < 2 mcg/dL, indicating the resolution of hypercortisolism along with substantiating the diagnosis of primary adrenocortical hyperfunction. Conclusion: To the best of our knowledge, this is the first case report of an opportunistic echinococcus infection presenting as a pituitary lesion in the setting of Cushing Syndrome. We would like to highlight the importance of recognizing opportunistic infections, including Echinococcus as a potential etiology in the setting of hypercortisolism, especially for patients from endemic regions. Presentation: 6/2/2024

Real-world study on the application of enhanced recovery after surgery protocol in video-assisted thoracoscopic day surgery for pulmonary nodule resection

ObjectiveThis study aims to evaluate the real-world effectiveness of applying different levels of Enhanced Recovery After Surgery (ERAS) guidelines to video-assisted thoracic day surgery (VATS). The goal is to determine the optimal degree of ERAS protocols and management requirements to improve postoperative recovery outcomes.MethodsIt was designed as a single-centre, prospective pragmatic randomized controlled trial (PRCT), including patients who underwent VATS at the Day Surgery Center of West China Hospital, between January 2021 and November 2022. Patients were divided into Group A and Group B through convenience sampling to implement different levels of ERAS management protocols. Data collection included the baseline characteristics (gender, age, marital status, education level, BMI, PONV risk score, ASA classification), surgery-related indicators (type of surgery, pathological results, hospitalization costs, duration of surgery, intraoperative blood loss, intraoperative rehydration volume), postoperative recovery indicators (postoperative chest tube duration time, time to first postoperative ambulation and urination, postoperative complications, follow-up condition), pain-related indicators (pain threshold score, pain score at 6 h postoperatively, bedtime, and predischarge), psychological state indicators (anxiety level), Athens Insomnia Scale (AIS) scores, and social support scores. Propensity score matching (PSM) was utilized and statistical analyses were conducted using R version 4.4.1. Comparisons of categorical variables were performed using the χ² test, while comparisons of continuous variables were conducted using ANOVA or the Kruskal-Wallis rank-sum test. A significance level of α = 0.05 was set for statistical tests.ResultA total of 340 patients were included, with 187 in Group A and 153 in Group B. After propensity score matching (PSM), there were 142 patients in Group A and 105 in Group B, with no significant baseline differences. Group A had a significantly higher proportion of chest tube removals within 24 h postoperatively (P < 0.001) and earlier mobilization (P < 0.001). Despite a higher pain threshold in Group A (P = 0.016), their postoperative pain scores were not higher than those in Group B. Additionally, Group A had a lower incidence of postoperative complications.ConclusionThe more comprehensive ERAS protocol significantly improved postoperative recovery, confirming its value in day-case VATS and supporting its clinical adoption. However, the study has limitations; future research should focus on standardizing ERAS protocols and expanding their application to a broader patient population to validate these findings further.Trail RegistrationThis study underwent review by the Ethics Committee of West China Hospital of Sichuan University under No. 2020 (1001). It has been officially registered with the China Clinical Trial Registry, TRN: ChiCTR2100051372 and registration date is Sept. 22, 2021.

Development and external validation of a nomogram for predicting lymph node metastasis in 1-3cm lung adenocarcinoma.

Aim: This study aimed to investigate the risk factors for lymph node metastasis in 1-3cm adenocarcinoma and develop a new nomogram to predict the probability of lymph node metastasis.Materials & methods: This study collected clinical data from 1656 patients for risk factor analysis and an additional 500 patients for external validation. The logistic regression analyses were employed for risk factor analysis. The least absolute shrinkage and selection operator regression was used to select variables, and important variables were used to construct the nomogram and an online calculator.Results: The nomogram for predicting lymph node metastasis comprises six variables: tumor size (mediastinal window), consolidation tumor ratio, tumor location, lymphadenopathy, preoperative serum carcinoembryonic antigen level and pathological grade. According to the predicted results, the risk of lymph node metastasis was divided into low-risk group and high-risk group. We confirmed the exceptional clinical efficacy of the model through multiple evaluation methods.Conclusion: The importance of intraoperative frozen section is increasing. We discussed the risk factors for lymph node metastasis and developed a nomogram to predict the probability of lymph node metastasis in 1-3cm adenocarcinomas, which can guide lymph node resection strategies during surgery.

Number of Resected Lymph Nodes and Survival Status in Node-Negative Esophageal Squamous Cell Carcinoma: A Cohort Study.

To explore the association between survival status and the number of resected lymph nodes in node-negative esophageal squamous cell carcinoma(ESCC) after surgical treatment. This was a retrospective observational cohort study and data were obtained from the Surveillance, Epidemiology, and End Results program (SEER) and TaiZhou hospital in China. The data for subjects with negative lymph nodes and no distant metastasis (pN0M0) after post-operative pathology were screened. The nonlinear relationship between resected lymph node number and survival status in node-negative ESCC was conducted using restricted cubic spline regression analysis. The association between the number of resected lymph nodes and survival status in node-negative ESCC was evaluated by Cox proportional hazards regression models. Subgroup analysis based on different subgroups was also performed. A total of 999 subjects were included in the study. Restricted cubic spline regression was used to show a U shaped association between the number of resected lymph nodes and survival status in node-negative ESCC, with low count associated with a decreased survival. To elucidate the association, we adjusted for age, sex, race, T stage, TNM (tumor node metastasis classification), location, grade, chemotherapy, and radiotherapy. As the resected lymph node number increased by one node, the survival status was improved by 2% (Hazard ratio(HR) = 0.98, 95% confidence interval (CI) 0.98-0.99). Sensitivity analysis indicate that the effect size and direction in different subgroups are consistent, the results is stability in SEER. A low count of resected lymph nodes correlated with reduced survival in patients with ESCC, where resecting 25 to 28 or more nodes is considered optimal. Larger prospective studies are warranted to confirm these findings.

Evaluation of lymph node ratios and log odds of positive nodes as prognostic indicators in primary organ malignancy

BackgroundStaging of malignant tumours based on positive lymph node number and not taking into account the actual number of examined lymph nodes during surgery may lead to bias and fallacious results. The ratio of positive and resected lymph nodes (LNR) and log odds of positive nodes (LODDS) emerged as novel prognostic markers in deciding the future course of management better than the parameter pN in predicting cancer-specific survival. We aim to evaluate and compare the prognostic value of pN, LNR and LODDS in common primary organ malignancies like breast, head and neck, gastric and cervical cancers. MethodsThis was an ambidirectional observational study conducted from September 2018 to August 2021 with one year (from 2017 to 2018) for retrospective data collection archived from records. It included patients affected by breast, head and neck, gastric and cervical cancers and were followed up for a period of 3 years from the date of diagnosis to perform a holistic survival analysis. The sample was grouped by American Joint Committee on Cancer N stage, LNR and LODDS, and analysed using Kaplan–Meier and multivariate Cox proportional hazard models. ResultsThe study included 202 breast cancer patients, 85 head and neck cancer patients, 100 gastric cancer patients and 52 cervical cancer patients. Multivariate Cox regressions analysis demonstrated a lower Akaike Information Criterion (AIC) value for LODDS and LNR followed by pN stage. ConclusionThe novel indicators LNR and LODDS better predicted the biological behaviour irrespective of lymph node number and allowed clinicians to correctly stratify patients for better postoperative management.

Pulmonary Inflammatory Myofibroblastic Tumour: a case report

Inflammatory myofibroblastic tumour (IMT) is a rare mesenchymal tumour that occurs predominantly in children and young adults. Etiology remains unclear. But based on the frequent detection of chromosomic alterations, especially near the Anaplastic Lymphoma Kinase gene, IMT is now considered to be a true neoplasm. In addition, the possible aggressive behaviour, and the ability to metastasize, suggest at least an intermediate malignant potential. Surgery remains the treatment of choice, but the use of chemotherapy, non-steroidal anti-inflammatory drugs (NSAID), immunotherapy and targeted therapy are reported. We describe a case of a pulmonary IMT in a six-year-old boy with an incidental finding of a lesion in the right upper lobe. A video-assisted thoracoscopic right upper lobectomy with lymph nodes resection was performed. Microscopic examination confirmed the diagnosis of IMT with the nodule showing spindle cells in a background of plasma cells. Anaplastic Lymphoma Kinase (ALK) immunohistochemical expression was negative. ALK inhibitors show promising results in ALK-expressing IMT. Nevertheless, primary surgery is the treatment of choice with a good overall survival rate in case of complete resection. But prolonged follow up is mandatory, as cases of delayed metastasis are described. Keywords: Inflammatory myofibroblastic tumour, paediatrics, thoracic surgery, Anaplastic Lymphoma Kinase, histopathology

Surgical approach selection and prognosis analysis of papillary thyroid microcarcinoma in the isthmus

Objective:To compare the prognosis of papillary thyroid microcarcinoma of the isthmus（PTMCI） after different surgical methods, and to investigate the most appropriate surgical plan for it, so as to provide reference for the selection of clinical surgical plan. Methods:The clinical data of 106 PTMCI patients diagnosed with postoperative pathology after surgical treatment in Department of Otolaryngology Head and Neck Surgery, Ningbo Medical Center Lihuili Hospital from January 2016 to June 2023 were retrospectively analyzed. The patients were divided into 3 groups according to whether there were nodules in the lateral lobe of the thyroid gland, namely, isolated PTMCI group, PTMCI group with unilateral lobe nodules, and PTMCI group with bilateral lobe nodules. Combined with follow-up information, the differences of recurrence rate, survival rate and postoperative complications after different surgical methods were compared among all groups. The surgical procedures included isthmic thyroidectomy, isthmic + unilateral lobectomy, and total thyroidectomy. All patients underwent central lymph node dissection at the same time. Results:There were no significant difference in recurrence rate, survival rate and postoperative complications among all groups and between groups. Postoperative recurrence occurred in 2 patients, among which 1 patient was PTMCI with multiple focal tumors in unilateral lobe undergoing isthmus + unilateral lobectomy + ipsilateral central lymph node dissection. The recurrence was manifested as contralateral cervical lymph node metastasis. Another case of PTMCI with bilateral benign nodules underwent isthmus + unilateral lobe（larger nodule） resection + ipsilateral central lymph node dissection, and the recurrence was manifested as residual glandular recurrence. One patient developed permanent hoarseness after surgery. The postoperative pathology of 31 patients（29.2%） indicated multiple focal thyroid carcinoma. Postoperative pathology of 41 patients（38.7%） suggested lymph node metastasis in the central region of neck. The disease-specific survival rate was 100%. Conclusion:Isthmic thyroidectomy is recommended for isolated PTMCI. Isthmus of thyroid+ unilateral lobectomy is feasible for PTMCI with unilateral lobectomy. If multiple suspicious malignant nodules（≥3） occur in unilateral lobectomy, total thyroidectomy is recommended. Total thyroidectomy is feasible for PTMCI with bilateral nodules. All PTMCI patients should undergo prophylactic central cervical lymph node dissection at the same time.

Comparison of Long-Term Survival Between Robotic and Video-Assisted Lobectomy for Stage Ⅰ NSCLC With Radiologic Solid Tumors: A Propensity Score Matching Study

BackgroundTo compare the long-term survival between robotic and video-assisted thoracic surgery (VATS) lobectomy for stage Ⅰ non–small-cell lung cancer (NSCLC) with radiologic solid tumors. MethodsClinical stage Ⅰ NSCLC patients with radiologic solid tumors who underwent robotic-assisted thoracic surgery (RATS) or VATS lobectomy between 2015 and 2017 were retrospectively reviewed. A propensity score matching analysis was performed to balance the baseline characteristics. The primary end points were overall survival (OS) and recurrence-free survival (RFS). ResultsA total of 518 patients (225 RATS and 293 VATS) were included. After propensity score matching, there were 170 cases in each group. Patients undergoing RATS had shorter operative time than VATS (98.12 min vs. 112.26 min; p < 0.001). The RATS approach resulted in a higher number of resected lymph nodes (LNs) (11.75 vs. 9.77; p < 0.001). The postoperative complication rates were comparable (7.6% vs. 10.0%, P = .566). The rates of 5-year OS and RFS for the RATS and VATS were 92% versus 89% (P = .62) and 82% vs. 86% (P = .70), respectively. Multivariate analysis revealed that the number of resected LNs was significantly associated with overall survival (OR = 1.94 [95% confidence interval [CI]: 1.07-3.51], P = .029). ConclusionThe long-term survival outcomes of RATS and VATS are similar for c-stage Ⅰ NSCLC with radiologic solid tumors. The use of robotics is associated with more lymph node dissection and shorter operative time. We suggested that the number of examined lymph nodes rather than surgical approaches was associated with overall survival.

Small bowel adenocarcinoma of the jejunum

Jejunal adenocarcinoma is an unusual type of gastrointestinal malignancy. The symptoms are vague, such as abdominal pain, nausea, vomiting, and, in some cases, weight loss. Due to this vague presentation as well as lack of definitive imaging techniques, diagnosis tends to be delayed and patients typically present at later stages. We present a case of a patient who presented with acute onset abdominal pain. Imaging revealed the presence of a suspicious lesion of the jejunum, with a 3,6 extension. The patient underwent a laparoscopy segmental intestinal resection and omental lymph node resection. The lesion was a 3-cm mass at proximal jejunum. The jejunum adenocarcinoma is a rare neoplasm of the small bowel. The curative resection at the early stages is still the best treatment.

Subtotal versus total gastrectomy for distal diffuse-type gastric cancer.

Diffuse-type gastric carcinoma in an aggressive form of gastric cancer. Surgery is the only potentially curative treatment. It is controversial whether patients with diffuse-type gastric carcinoma should undergo total or subtotal gastrectomy when feasible. The aim of this study is to analyze the oncologic outcomes and overall survival of patients diagnosed with distal diffuse-type gastric cancer undergoing subtotal versus total gastrectomy with curative intent. This retrospective study included all patients with histologically confirmed diffuse-type distal gastric carcinoma and clinical staging cT1-4M0, who underwent surgery with curative intent between 2011 and 2020 in a Tertiary Referral Hospital in Chile. Clinical and pathological staging was conducted using the 8th Edition of the American Joint Committee on Cancer Classification. STG group was comprised by patients who underwent subtotal gastrectomy and TG group by patients who underwent total gastrectomy. Both groups were compared in relation to sociodemographic variables, pathology reports and perioperative data which were obtained from electronic medical records. Data analysis was obtained with Stata 16.1 Statistical Software. One hundred and thirty patients underwent curative intent surgery. Subtotal gastrectomy with D2-lymphadenectomy was completed in 68 patients (52%). An R0 resection was achieved in all patients. Median number of resected lymph nodes, tumor size, proximal margin and depth of invasion were similar in both groups. Pathologicstaging was similar between both groups, the most frequent being Stage 3(54%). After a median follow-up of 47 months [0.3-157], no difference was observed in overall survival between both groups (5-year-OS 63% in STG group versus 51% in TG group, p = 0.097). Oncologic and survival outcomes were similar in patients submitted to subtotal and total gastrectomy,suggesting that a subtotal gastrectomy with D2-lymphadenectomy for distal diffuse-type gastric carcinoma is not associated with a decrease in median overall survival and is an adequate surgical approach when technically feasible.

Comparison of electromagnetic navigation bronchoscopy localization and CT-guided percutaneous localization in resection of lung nodules: A protocol for systematic review and meta-analysis.

This study aimed to evaluate the efficacy and safety between electromagnetic navigational bronchoscopy (ENB) and computed tomography (CT)-guided percutaneous localization before resection of pulmonary nodules. Pubmed, Embase, Web of Science, and the Cochrane Library databases were searched from January 1, 2000 to April 30, 2022, for relevant studies. Two reviewers conducted the search, selection, and extraction of data from eligible studies. The risk of bias was assessed using the Newcastle-Ottawa Scale. The primary outcome was the localization success rate, and the secondary outcomes were the pneumothorax incidence and localization time. The meta-analysis was performed by Review Manager 5.4. The protocol for the meta-analysis was registered on PROSPERO (Registration number: CRD42022345972). Five cohort studies comprising 441 patients (ENB group: 185, CT group: 256) were analyzed. Compared with the CT-guided group, the ENB-guided group was associated with lower pneumothorax incidence (relative ratio = 0.16, 95% confidence interval [CI]: 0.04-0.65, P = .01). No significant differences were found in location success rates (relative ratio = 1.01, 95% CI: 0.98-1.05, P = .38) and localization time (mean difference = 0.99, 95% CI: -5.73 to 7.71, P = .77) between the ENB group and CT group. Both ENB and CT-guided are valuable technologies in localizing lung nodules before video-assisted thoracoscopic surgery based on current investigations. ENB achieved a lower pneumothorax rate than the CT-guided group. In our opinion, there is no perfect method, and decision-making should be given the actual circumstances of each institute. Future prospective studies in the form of a randomized trial are needed to confirm their clinical value.

A case of grade1 follicular lymphoma diagnosed by laparoscopic lymph node resection: differentiating from late lymph node recurrence of endometrial cancer.

Follicular lymphoma is a common hematologic malignancy; however, it is less common among all malignant diseases and is difficult to suspect in advance due to the lack of specific clinical findings. Here, we report a case in which a late recurrence of corpus cancer was first suspected and finally diagnosed as follicular lymphoma. A 67-year-old female presented to our department with enlarged pelvic lymph nodes. She was diagnosed with breast cancer (HER2-posiotive with lymph node metastasis) and corpus cancer (endometrioid carcinoma grade 2, stage IA) 16years prior, received definitive therapy and was followed up. A positron emission tomography scan was performed, and an accumulation of 18F-fluorodeoxyglucose (FDG) was detected in multiple lymph nodes, including the lymph nodes with no change in size or enlargement. We performed laparoscopic resection of the enlarged and FDG-accumulated lymph nodes and a pathological examination. The patient was diagnosed with follicular lymphoma (FL) grade 1 and is currently under observation at the Department of Hematology. FL can be considered when there is a discrepancy between the change in lymph node size and the degree of FDG accumulation. A pathological examination is useful for accurate diagnosis. Therefore, it is important to consider tissue collection; however, care must be taken to minimize the invasiveness of the procedure for the patient.

Diffusion-Weighted Magnetic Resonance Imaging for the Diagnosis of Lymph Node Metastasis in Patients with Biliary Tract Cancer.

Objective: The diagnostic efficacy of the apparent diffusion coefficient (ADC) in diffusion-weighted magnetic resonance imaging (DW-MRI) for lymph node metastasis in biliary tract cancer was investigated in the present study. Methods: In total, 112 surgically resected lymph nodes from 35 biliary tract cancer patients were examined in this study. The mean and minimum ADC values of the lymph nodes as well as the long-axis and short-axis diameters of the lymph nodes were assessed by computed tomography (CT). The relationship between these parameters and the presence of histological lymph node metastasis was evaluated. Results: Histological lymph node metastasis was detected in 31 (27.7%) out of 112 lymph nodes. Metastatic lymph nodes had a significantly larger short-axis diameter compared with non-metastatic lymph nodes (p = 0.002), but the long-axis diameter was not significantly different between metastatic and non-metastatic lymph nodes. The mean and minimum ADC values for metastatic lymph nodes were significantly reduced compared with those for non-metastatic lymph nodes (p < 0.001 for both). However, the minimum ADC value showed the highest accuracy for the diagnosis of histological lymph node metastasis, with an area under the curve of 0.877, sensitivity of 87.1%, specificity of 82.7%, and accuracy of 83.9%. Conclusions: The minimum ADC value in DW-MRI is highly effective for the diagnosis of lymph node metastasis in biliary tract cancer. Accurate preoperative diagnosis of lymph node metastasis in biliary tract cancer should enable the establishment of more appropriate treatment strategies.