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Narrative review on applications of fluorescence-guided surgery in adult and paediatric urology 荧光引导手术在成人和儿童泌尿外科的应用综述
Pub Date : 2021-01-01 DOI: 10.21037/amj-20-194
I. Paraboschi, Federica Farneti, L. Jannello, G. Manzoni, A. Berrettini, G. Mantica
More recently, there has been a substantial increase in the use of fluorophores to guide open and laparoscopic procedures with the ultimate aim to optimize both oncological and functional outcomes and to reduce operative time and blood loss. Fluorescent dyes are currently adopted to allow safer and more accurate dissections during both oncological and reconstructive procedures thanks to their ability of highlighting tumour margins and tissue vascularization. Urology is one of the fields in which fluorescenceguided surgery (FGS) has proved to be most useful. In particular, it has assumed a pivotal role in the surgical treatment of oncological patients affected by kidney, bladder, prostate and penis cancers and in the management of paediatric urological conditions. This review aims to provide an update on the use of FGS in adult and paediatric urology, drawing attention to its most recent and interesting applications in this very innovative field of research. Although FGS has been only recently introduced in the clinical scenario, it can be already considered a powerful tool to improve oncological, anatomical and functional outcomes in both adult and paediatric urology. An increased identification of lymph nodes (LNs), a more accurate visualization of tumour margins and a better definition of blood supply and lymphatic drainage have proved to be greatly beneficial for patients undergoing urological procedures, whether they are adults or children. Longitudinal studies with larger sample sizes are still needed to draw firm conclusions and to confirm its benefits in
最近,荧光团在指导开放式和腹腔镜手术中的应用大幅增加,最终目的是优化肿瘤学和功能结果,减少手术时间和失血。荧光染料由于能够突出肿瘤边缘和组织血管形成,目前被用于在肿瘤学和重建过程中进行更安全、更准确的解剖。泌尿外科是荧光引导手术(FGS)被证明最有用的领域之一。特别是,它在肾癌、膀胱癌、前列腺癌和阴茎癌肿瘤患者的外科治疗以及儿科泌尿系统疾病的管理中发挥了关键作用。这篇综述旨在提供FGS在成人和儿科泌尿外科中使用的最新情况,提请人们注意其在这一非常创新的研究领域中的最新和有趣的应用。尽管FGS最近才被引入临床,但它已经被认为是改善成人和儿童泌尿外科肿瘤学、解剖学和功能结果的有力工具。淋巴结(LNs)识别的增加、肿瘤边缘的更准确可视化以及血液供应和淋巴引流的更好定义已被证明对接受泌尿外科手术的患者(无论是成人还是儿童)非常有益。仍然需要对更大样本量的纵向研究来得出确切的结论,并确认其在
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引用次数: 5
Contemporary narrative review: a clinically oriented interpretation of incidental radiological findings for common cardiovascular computed tomography scans 当代叙述性综述:常见心血管计算机断层扫描偶然放射学结果的临床导向解释
Pub Date : 2021-01-01 DOI: 10.21037/amj-21-30
Apichaya Sripariwuth, Temphon Kruamak, Bo Xu
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引用次数: 0
Clinicopathological and genetic features of anastomosing haemangioma of the kidney: a narrative review 肾吻合血管瘤的临床病理和遗传特征:叙述性综述
Pub Date : 2021-01-01 DOI: 10.21037/AMJ-20-181
A. Omiyale, J. Carton
: Anastomosing haemangioma of the kidney is a benign vascular neoplasm composed of thin-walled anastomosing blood vessels. Anastomosing haemangiomas are exceptionally rare. Approximately 75 cases have been described in the literature. The mean age of patients at diagnosis is 49 years (range, 10–83 years). There is a slight male predominance with a male-to-female ratio of 2:1. Patients present with non-specific symptoms including abdominal pain, haematuria, and abdominal mass. Anastomosing haemangiomas are spongy and well circumscribed mahogany brown masses without necrosis. These tumours are usually unilateral and solitary. Microscopically, the tumours are composed of anastomosing capillary-sized blood vessels lined by a single layer of bland endothelial cells. Anastomosing haemangiomas are positive for ERG, CD31, CD34, factor VIII-related antigen and FLI1. These tumours harbour recurrent somatic mutations in the GNAQ gene and its paralogue, GNA14. The considerable overlap of clinical features and imaging characteristics between anastomosing haemangioma and other vascular tumours of the kidney, particularly primary renal angiosarcoma, makes diagnosis quite challenging. Unlike primary renal angiosarcoma, anastomosing haemangioma has an excellent prognosis with no risk of recurrence or metastasis. For this reason, anastomosing haemangioma must be distinguished from primary renal angiosarcoma. Awareness of anastomosing haemangioma of the kidney is essential to avoiding misdiagnosis of primary renal angiosarcoma and preventing unnecessary aggressive treatment.
:肾吻合血管瘤是一种由薄壁吻合血管组成的良性血管肿瘤。吻合血管瘤异常罕见。文献中描述了大约75例病例。诊断时患者的平均年龄为49岁(范围为10-83岁)。男性略占优势,男女比例为2:1。患者表现出非特异性症状,包括腹痛、血尿和腹部肿块。吻合血管瘤呈海绵状和界限分明的桃花心褐色肿块,无坏死。这些肿瘤通常是单侧和孤立的。显微镜下,肿瘤由吻合的毛细血管大小的血管组成,血管内衬单层淡内皮细胞。吻合血管瘤ERG、CD31、CD34、因子VIII相关抗原和FLI1阳性。这些肿瘤在GNAQ基因及其旁系GNA14中存在复发性体细胞突变。吻合血管瘤和其他肾脏血管肿瘤,特别是原发性肾脏血管肉瘤,其临床特征和影像学特征有相当大的重叠,这使得诊断非常具有挑战性。与原发性肾血管肉瘤不同,吻合血管瘤预后良好,无复发或转移风险。因此,吻合血管瘤必须与原发性肾血管肉瘤区别开来。对肾吻合血管瘤的认识对于避免原发性肾血管肉瘤的误诊和预防不必要的积极治疗至关重要。
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引用次数: 1
Narrative review of the pathologic assessment of immune response in lung cancer 肺癌免疫反应病理评价的叙述性综述
Pub Date : 2021-01-01 DOI: 10.21037/AMJ-20-115
Hanqiao Zheng, I. Yambayev, A. Shevtsov, E. Burks
Lung cancer is the most common cause of cancer death worldwide. While targeted therapies have offered promise for a small subset of patients with driver mutations, usually found among light/neversmokers, the majority arise among heavy smokers are usually not benefited. Immune checkpoint inhibition has instead offered greater promise in this larger cohort of patients. This observation has led to greater attention to the immune components of the tumor microenvironment (TME) and a model of tumor immunoediting has emerged in which cancer evolves through phases of elimination, equilibrium, and escape. The chief effector cell in this process is the cytotoxic T-cell (CTL) which can be measured quantitatively using immunohistochemistry for CD8. While the density of this population within primary tumors and their metastasis is prognostic in advanced stage disease of both small cell lung carcinoma (SCLC) and nonsmall cell lung cancer (NSCLC), the prognostic significance is more variable in early stage disease and in particular among adenocarcinoma (LUAD) which are heterogenous in their morphology, biology, and risk factor associations. The anti-tumor role of CTL is dependent on a host of immune cell interactions which can be measured by assessing tumor-infiltrating lymphocytes (TIL) on routine H&E staining as well as specific dendritic cell populations associated with the formation of tertiary lymphoid structures (TLS) using immunohistochemistry for LAMP or regulatory T-cells (Treg) using FoxP3. Finally, tumor associated macrophages (TAM) and neutrophils (TAN) may polarize to promote (M1 or N1) or inhibit (M2 or N2) CTL effectiveness and can be measured using a variety of immunohistochemical approaches. Herein we review the immunopathologic features of TME in lung cancer and their prognostic associations.
肺癌是全世界最常见的癌症死亡原因。虽然靶向治疗为一小部分驱动突变患者(通常在轻度或从不吸烟者中发现)提供了希望,但大多数出现在重度吸烟者中通常没有受益。相反,免疫检查点抑制在这个更大的患者队列中提供了更大的希望。这一观察结果引起了对肿瘤微环境(TME)免疫成分的更多关注,并且出现了一种肿瘤免疫编辑模型,其中癌症通过消除、平衡和逃逸阶段进化。在这个过程中主要的效应细胞是细胞毒性t细胞(CTL),它可以用CD8的免疫组织化学定量测量。虽然原发性肿瘤中该人群的密度及其转移在小细胞肺癌(SCLC)和非小细胞肺癌(NSCLC)的晚期疾病中具有预后作用,但在早期疾病中,特别是在腺癌(LUAD)中,其预后意义更加可变,因为腺癌在形态、生物学和危险因素相关方面具有异质性。CTL的抗肿瘤作用依赖于一系列免疫细胞相互作用,这些相互作用可以通过常规H&E染色评估肿瘤浸润淋巴细胞(TIL)以及使用LAMP免疫组织化学检测与三级淋巴结构(TLS)形成相关的特定树突状细胞群或使用FoxP3检测调节性t细胞(Treg)来测量。最后,肿瘤相关巨噬细胞(TAM)和中性粒细胞(TAN)可能极化以促进(M1或N1)或抑制(M2或N2) CTL的有效性,并且可以使用各种免疫组织化学方法进行测量。本文综述了肺癌TME的免疫病理特征及其与预后的关系。
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引用次数: 1
Neoadjuvant immunotherapy in early stage non-small cell lung cancer 早期非小细胞肺癌的新辅助免疫治疗
Pub Date : 2021-01-01 DOI: 10.21037/AMJ-20-183
Karen Chan, Van Ren Sim, A. Billé, K. Zaki
Cancer immunotherapies targeting CTLA-4 and PD-1/PD-L1 relieve tumour induced immune suppression and induce durable tumour regression. When used alone or in combination with other modalities, immune checkpoint inhibitors have had a remarkable clinical impact on the treatment of multiple tumour sites including non-small cell lung cancer (NSCLC). This makes neoadjuvant immunotherapy an attractive option for use in early stage NSCLC. Currently, immunotherapy is used in the UK in both a curative and palliative setting. The use of neoadjuvant immunotherapy has the potential benefit of pathological downstaging prior to surgery, which may facilitate radical approaches to surgery— potentially conferring an improvement in overall survival. This literature review examines current literature and evidence on the use of immunotherapy prior to surgery, both as a single agent and in combination with chemotherapy. We conclude that neoadjuvant immunotherapy is a safe and feasible option for patients with resectable early stage NSCLC. Further investigation is required to determine whether a combined approach with chemotherapy or single agent immunotherapy is superior. Confirmatory Phase III clinical trials are ongoing to assess longer clinical impact on event-free survival (EFS), disease-free survival (DFS) and OS. Predictive and prognostic biomarkers are also needed in this setting, and ongoing work is being conducted to investigate this further.
靶向CTLA-4和PD-1/PD-L1的癌症免疫疗法缓解肿瘤诱导的免疫抑制并诱导持久的肿瘤消退。当单独使用或与其他方式联合使用时,免疫检查点抑制剂对包括癌症(NSCLC)在内的多个肿瘤部位的治疗具有显著的临床影响。这使得新辅助免疫疗法成为早期NSCLC的一种有吸引力的选择。目前,免疫疗法在英国被用于治疗和姑息治疗。新辅助免疫疗法的使用具有在手术前降低病理分期的潜在好处,这可能有助于采取激进的手术方法,有可能提高总生存率。这篇文献综述审查了目前关于在手术前使用免疫疗法的文献和证据,无论是作为单一药物还是与化疗联合使用。我们的结论是,新辅助免疫治疗是一种安全可行的早期可切除NSCLC患者的选择。需要进一步研究,以确定联合化疗或单剂免疫疗法是否更优越。验证性III期临床试验正在进行中,以评估对无事件生存期(EFS)、无病生存期(DFS)和OS的长期临床影响。在这种情况下,还需要预测和预后的生物标志物,目前正在进行进一步的研究。
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引用次数: 0
Frontiers in post-radiation urologic reconstruction; robotic surgery and near-infrared fluorescence imaging: A Narrative Review 放射后泌尿外科重建的前沿;机器人手术与近红外荧光成像:叙述性综述
Pub Date : 2021-01-01 DOI: 10.21037/amj-21-3
A. Elbakry, M. M. Pan, J. Buckley
Radiation therapy is an important treatment option for management of pelvic organ malignancies including urologic, gynecologic, and gastrointestinal cancers (1). Radiation toxicity results from DNA and cellular damage of healthy tissue in the radiation field and can ultimately lead to tissue necrosis or fibrosis. Radiation therapy of abdominal and pelvic malignancies can cause delayed adverse functional and anatomical effects that involve portions of the urinary tract, such as the ureters, bladder, and posterior urethra. These adverse effects are believed to result from damage to urinary tract epithelium and microvasculature (2,3). Ureteral stricture, contracted bladder, rectourethral fistula, bladder neck contracture, and urethral stricture disease are among the long-term toxicities Review Article
放射治疗是治疗盆腔器官恶性肿瘤的重要治疗选择,包括泌尿系、妇科和胃肠道癌症(1)。辐射毒性是由辐射场中健康组织的DNA和细胞损伤引起的,并最终导致组织坏死或纤维化。腹部和骨盆恶性肿瘤的放射治疗可能会导致延迟的不良功能和解剖影响,包括尿道部分,如输尿管、膀胱和后尿道。这些不良反应被认为是由尿路上皮和微血管损伤引起的(2,3)。尿道狭窄、膀胱收缩、直肠尿道瘘、膀胱颈挛缩和尿道狭窄疾病都是长期毒性
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引用次数: 1
Prognostic significance of nodal metastasis in thymic malignancies: a narrative review of the current evidence 胸腺恶性肿瘤淋巴结转移的预后意义:对现有证据的叙述性综述
Pub Date : 2021-01-01 DOI: 10.21037/amj-21-34
W. K. Hui, P. V. Van Schil
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引用次数: 0
Evaluation and management of urinary retention after pelvic radiation therapy: a narrative review 骨盆放射治疗后尿潴留的评估和处理:叙述性综述
Pub Date : 2021-01-01 DOI: 10.21037/AMJ-20-170
Zachary R. Burns, Vijay Vishwanath, Brian Ceballos, J. Selph
: Pelvic radiotherapy for the treatment of malignancy is known to cause unintended urinary toxicity including urinary retention and urethral stricture disease (USD). In the treatment of prostate cancer with radiotherapy, the reported rate of USD is between 1.7–5.2% while urinary toxicity has been reported in as high as 16% of patients that undergo radiotherapy for the treatment of rectal cancer. The purpose of this review article is to evaluate literature regarding the role of pelvic radiotherapy in causing urinary retention and to discuss the unique treatment considerations for urinary retention in the irradiated man ranging from urinary catheter placement to transurethral dilation (UD) to open surgical repair.
:众所周知,盆腔放射治疗恶性肿瘤会导致意外的尿毒性,包括尿潴留和尿道狭窄疾病(USD)。在用放疗治疗癌症的过程中,报告的USD发病率在1.7-5.2%之间,而据报道,在接受放疗治疗直肠癌症的患者中,高达16%的患者存在尿毒性。这篇综述文章的目的是评估有关骨盆放射治疗在引起尿潴留中的作用的文献,并讨论受照射男性尿潴留的独特治疗考虑因素,从导尿管放置到经尿道扩张(UD)再到开放手术修复。
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引用次数: 0
The bile acid phospholipid conjugate ursodeoxycholate lysophoshatidylethanolamide acts by binding to calcium independent membrane phospholipase A2 type beta 胆汁酸-磷脂偶联物熊去氧胆酸-溶血磷脂酰乙醇酰胺通过与钙非依赖性膜磷脂酶A2β结合发挥作用
Pub Date : 2021-01-01 DOI: 10.21037/AMJ-21-10
C. Stremmel, W. Stremmel, O. Kadioglu, T. Efferth, R. Weiskirchen
Background: The hallmarks of non-alcoholic steatohepatitis are inflammation, ongoing liver cell damage, and the accumulation of hepatic fat. Although the pathogenesis is not fully understood yet, there is clear evidence that disease progression is associated with an increased ratio of lysophosphatidylcholine (LPC) to phosphatidylcholine (PC), which is an indicator of elevated phospholipase A 2 (PLA 2 ) activity. The isoform iPLA 2 β is a member of the fatty acid uptake complex and has an intrinsic capability to generate LPC, while the bile acid phospholipid conjugate, ursodeoxycholate-lysophosphatidylethanolamide (UDCA-LPE) inhibits iPLA 2 β and suppresses pro-inflammatory LPC generation in a dose-dependent mode. However, the precise mode of activity of this inhibition is still enigmatic. Methods: In the present study, we used in silico techniques for predicting the potential docking sites of UDCA-LPE in iPLA 2 β . Results: We identified a region between Phe84 and Leu125 that should have a large affinity for UDCA-LPE. The proposed docking site is nearly identical with those that were determined for binding of pyrrophenone to the evolutionarily conserved PLA 2 α . Conclusions: The affinity of UDCA-LPE for iPLA 2 β might explain the rationale for the efficacy of UDCA-LPE in preventing hepatic fatty acid uptake. acts independent phospholipase A
背景:非酒精性脂肪性肝炎的特征是炎症、持续的肝细胞损伤和肝脂肪积聚。尽管发病机制尚不完全清楚,但有明确证据表明,疾病进展与溶血磷脂酰胆碱(LPC)与磷脂酰胆碱的比例增加有关,这是磷脂酶A2(PLA2)活性升高的指标。同种型iPLA 2β是脂肪酸摄取复合物的一员,具有产生LPC的内在能力,而胆汁酸-磷脂偶联物熊去氧胆酸-溶血磷脂酰乙醇酰胺(UDCA-LPE)以剂量依赖性模式抑制iPLA 2?并抑制促炎LPC的产生。然而,这种抑制作用的确切活动模式仍然是个谜。方法:在本研究中,我们使用计算机技术预测UDCA-LPE在iPLA 2β中的潜在对接位点。结果:我们确定了Phe84和Leu125之间的一个区域,该区域应该对UDCA-LPE具有很大的亲和力。所提出的对接位点与已确定的用于将吡咯酮与进化保守的PLA 2α结合的对接位点几乎相同。结论:UDCA-LPE对iPLA2β的亲和力可能解释了UDCA-LPE在预防肝脏脂肪酸摄取方面的作用。独立于磷脂酶A的作用
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引用次数: 0
Etiology–histomorphology–entity correlation in liver pathology: a narrative review 肝脏病理学的病因-组织形态学-实体相关性:叙述性综述
Pub Date : 2021-01-01 DOI: 10.21037/amj-21-33
N. Gassler, A. Press, F. Rauchfuß, B. Theis, E. Kaemmerer
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引用次数: 0
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AME medical journal
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