Pancreatic neoplasms

胰腺肿瘤
  • 文章类型: Journal Article
    目的:探讨使用自然语言处理(NLP)的连续计算机断层扫描(CT)放射学报告对胰腺癌生存的预测潜力。
    方法:基于深度迁移学习的NLP模型进行了回顾性训练和测试,免费CT报告,并提取韩国某三级医院连续诊断为胰腺癌患者的生存信息。随机选择的胰腺癌患者及其来自美国独立三级医院的系列CT报告被纳入外部测试数据集。预测生存率和实际生存率的一致性指数(c指数),计算预测1年生存率的受试者工作特征曲线下面积(AUROC)。
    结果:在2004年1月至2021年6月之间,将2,677例患者和12,255例CT报告和670例患者和3,058例CT报告分配到培训和内部测试数据集,分别。ClinicalBERT(来自变压器的双向编码器表示)模型在单个模型上训练,首次CT报告显示,预测胰腺癌患者总生存期的c指数为0.653,AUROC为0.722.ClinicalBERT对最初报告的15份连续报告进行了培训,显示c指数为0.811,AUROC为0.911。在273例患者的外部测试装置上,有1,947例CT报告,AUROC为0.888,表明我们的模型具有普适性。进一步的分析表明,我们的模型的上下文解释超出了特定的短语。
    结论:基于深度迁移学习的NLP模型可以预测胰腺癌患者的生存率。临床决策可以由开发的模型支持,仅从连续放射学报告中提取生存信息。
    OBJECTIVE: To explore the predictive potential of serial computed tomography (CT) radiology reports for pancreatic cancer survival using natural language processing (NLP).
    METHODS: Deep-transfer-learning-based NLP models were retrospectively trained and tested with serial, free-text CT reports, and survival information of consecutive patients diagnosed with pancreatic cancer in a Korean tertiary hospital was extracted. Randomly selected patients with pancreatic cancer and their serial CT reports from an independent tertiary hospital in the United States were included in the external testing data set. The concordance index (c-index) of predicted survival and actual survival, and area under the receiver operating characteristic curve (AUROC) for predicting 1-year survival were calculated.
    RESULTS: Between January 2004 and June 2021, 2,677 patients with 12,255 CT reports and 670 patients with 3,058 CT reports were allocated to training and internal testing data sets, respectively. ClinicalBERT (Bidirectional Encoder Representations from Transformers) model trained on the single, first CT reports showed a c-index of 0.653 and AUROC of 0.722 in predicting the overall survival of patients with pancreatic cancer. ClinicalBERT trained on up to 15 consecutive reports from the initial report showed an improved c-index of 0.811 and AUROC of 0.911. On the external testing set with 273 patients with 1,947 CT reports, the AUROC was 0.888, indicating the generalizability of our model. Further analyses showed our model\'s contextual interpretation beyond specific phrases.
    CONCLUSIONS: Deep-transfer-learning-based NLP model of serial CT reports can predict the survival of patients with pancreatic cancer. Clinical decisions can be supported by the developed model, with survival information extracted solely from serial radiology reports.
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  • 文章类型: Journal Article
    背景:胰腺癌风险与血清胆固醇水平升高有关,这反过来又部分受到饮食的影响。这项研究旨在评估胰腺癌风险与坚持植物性降胆固醇饮食之间的关系。
    方法:数据来自一项意大利病例对照研究,包括258例胰腺癌患者和551例对照。降低胆固醇的饮食评分基于七个组成部分:(i)非纤维素多糖(粘性纤维的代表)的高摄入量,(ii)单不饱和脂肪酸,(iii)豆类,和(iv)种子/玉米油(植物甾醇的代表);和低摄入量的(v)饱和脂肪酸,(vi)膳食胆固醇,和(vii)血糖指数高的食物。计算分数时,每个完成的组件加一分,因此从零(不坚持)到七(完全坚持)。通过逻辑回归模型估计比值比(OR)和95%置信区间(CI)。
    结果:与0-2分相比,5-7分与癌症风险降低相关(OR=0.30;95%CI:0.18-0.52)。
    结论:坚持以植物为基础的降胆固醇饮食与胰腺癌风险降低相关。
    BACKGROUND: Pancreatic cancer risk has been associated with increased serum cholesterol level, which is in turn partially influenced by diet. This study aimed at evaluating the association between pancreatic cancer risk and the adherence to a plant-based cholesterol-lowering diet.
    METHODS: Data were derived from an Italian case-control study including 258 pancreatic cancer patients and 551 controls. The cholesterol-lowering diet score was based on seven components: high intakes of (i) non-cellulosic polysaccharides (a proxy of viscous fibers), (ii) monounsaturated fatty acids, (iii) legumes, and (iv) seeds/corn oils (a proxy of phytosterols); and low intakes of (v) saturated fatty acids, (vi) dietary cholesterol, and (vii) food with a high glycemic index. The score was calculated adding one point for each fulfilled component, thus ranging from zero (no adherence) to seven (complete adherence). The odds ratios (ORs) and 95% confidence intervals (CIs) were estimated through the logistic regression model.
    RESULTS: Scores 5-7 were associated with reduced cancer risk (OR = 0.30; 95% CI: 0.18-0.52) compared to scores 0-2.
    CONCLUSIONS: Adherence to a plant-based cholesterol-lowering diet was associated with a reduced risk of pancreatic cancer.
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  • 文章类型: Journal Article
    背景:了解环境胰腺腺癌(PA)危险因素,包括农药暴露,仍然有限。有机氯(OC)在脂肪组织中积累,可以帮助反映长期暴露。
    方法:PA患者的年龄和体重指数(BMI)与接受良性疾病手术的患者的年龄和BMI(1:1)相匹配。目标性分析筛选了345种农药和代谢物,包括29个OC,在脂肪组织和尿液样本中。主要目的是调查内脏脂肪或尿液中有机氯浓度之间的关系,和PA。考虑到多重测试,进行了调整后的条件逻辑回归。
    结果:trans-nonachlor(比值比[OR]=1.325,95%置信区间[CI][1.108-1.586]),顺式-九氯(OR=15.433,95%CI[2.733-87.136]),脂肪中的灭蚁灵(OR=2.853,95%CI[1.213-6.713])和4,4DDE(OR=1.019,95%CI[1.005-1.034])以及更多的阳性样本(OR=1.75895%CI[1.11-2.997])与更高的PA几率显着相关。相比之下,等待,尿液样本对所有测试的农药均未产生任何统计学上显著的关联.
    结论:一些OCs与较高的PA几率相关。需要研究胰腺攻击的潜在机制以完善这些发现。
    背景:Clinicaltrials.govNCT04429490。
    BACKGROUND: Knowledge about environmental pancreatic adenocarcinoma (PA) risk factors, including pesticide exposure, remains limited. Organochlorine (OC) accumulates in adipose tissue and can help reflect long-term exposure.
    METHODS: Age and body mass index (BMI) of patients with PA were matched with those undergoing a surgery for a benign disease on age and BMI (1:1). Targeted analyses screened 345 pesticides and metabolites, including 29 OC, in adipose tissue and urine samples. The primary aim was to investigate the association between organochlorine concentrations in visceral fat or urine, and PA. Adjusted conditional logistic regressions were carried out accounting for multiple testing.
    RESULTS: Trans-nonachlor (odds ratio [OR] = 1.325, 95% confidence interval [CI] [1.108-1.586]), cis-nonachlor (OR = 15.433, 95% CI [2.733-87.136]), Mirex (OR = 2.853, 95% CI [1.213-6.713]) and 4,4 DDE (OR = 1.019, 95% CI [1.005-1.034]) in fat and a greater number of positive samples (OR = 1.758 95% CI [1.11-2.997]) were significantly associated with higher odds of PA. In contrast, as awaited, urine samples did not yield any statistically significant associations for all tested pesticides.
    CONCLUSIONS: Some OCs were associated with higher odds of PA. The underlying mechanisms of pancreatic aggression need to be investigated to refine these findings.
    BACKGROUND: Clinicaltrials.gov NCT04429490.
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  • 文章类型: Case Reports
    背景技术微创胰腺切除术已成为治疗良性和恶性胰腺肿瘤的标准做法。已知诸如机器人和腹腔镜方法的技术通过提供诸如减少失血的益处来降低发病率。减轻疼痛,缩短住院时间,和更快的恢复时间。初次胰腺手术后复发性或从头胰腺肿瘤的重复微创胰腺切除术的适应症仍存在争议。病例报告一名50岁的妇女因胰头导管内乳头状粘液性肿瘤的诊断而入院。2010年,她在胰腺钩突过程中接受了腹腔镜单支切除术。在5年的随访中,检测到新的导管内乳头状黏液性肿瘤,在接下来的7年中显示出逐渐的生长和壁结节的存在。患者的CEA水平升高至7.0ng/mL。考虑到肿瘤的进展和壁结节的出现,我们推荐了一个机器人辅助的Whipple手术.手术开始于腹腔镜粘连松解术。在使用Kocher手法分离粘连并重新固定十二指肠后,达芬奇手术系统继续手术。术后期间平安无事,患者在术后第20天出院。病理检查示导管内乳头状黏液原位癌,切缘阴性。结论本案例验证了在先前接受过微创胰腺手术的患者中对新诊断的胰腺肿瘤进行机器人Whipple手术的安全性和可行性。
    BACKGROUND Minimally invasive pancreatectomy has become the standard practice for the management of benign and malignant pancreatic tumors. Techniques such as robotic and laparoscopic approaches are known to reduce morbidity by offering benefits such as less blood loss, reduced pain, shorter hospital stays, and quicker recovery times. The indication for repeated minimally invasive pancreatectomy for recurrent or de novo pancreatic neoplasm after primary pancreatic surgery remains debated. CASE REPORT A 50-year-old woman was admitted to our hospital with a diagnosis of an intraductal papillary mucinous neoplasm in the pancreatic head. In 2010, she underwent laparoscopic single-branch resection for a branch-type tumor in the pancreatic uncinate process. During a 5-year follow-up, a de novo intraductal papillary mucinous neoplasm was detected, showing gradual growth and the presence of a mural nodule over the next 7 years. The patient\'s CEA level was elevated to 7.0 ng/mL. Considering the tumor\'s progression and the appearance of a mural nodule, we recommended a robot-assisted Whipple procedure. The operation began with laparoscopic adhesiolysis. After detachment of the adhesions and remobilization of the duodenum using the Kocher maneuver, the operation continued with the Da Vinci surgical system. The postoperative period was uneventful, and the patient was discharged on postoperative day 20. Pathological examination revealed intraductal papillary mucinous carcinoma in situ with negative resection margins. CONCLUSIONS This case verifies the safety and feasibility of performing a robotic Whipple procedure for a newly diagnosed pancreatic neoplasm in patients who have previously undergone minimally invasive pancreatic surgery.
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  • 文章类型: Case Reports
    多发性内分泌瘤形成1型(MEN1)是一种常染色体显性疾病,以MEN1肿瘤抑制基因的致病变异为特征,导致甲状旁腺肿瘤,胰腺,和垂体。在MEN1中,产生ACTH的胰腺神经内分泌癌的发生极为罕见。
    本报告详细介绍了一个哥伦比亚家庭,该家庭拥有通过索引病例启动的基因筛选鉴定的新型MEN1变体。受影响的家庭成员在20多岁至50多岁时表现出原发性甲状旁腺功能亢进(PHPT)症状。独特的,该指标病例发展为分泌ACTH的胰腺神经内分泌癌,在MEN1综合征中很罕见。主动筛查可以在两个携带者中早期发现垂体神经内分泌肿瘤(PitNETs)作为微腺瘤,随后根据临床表现进行手术或药物干预。
    我们的研究结果强调了级联筛查在促进MEN1的早期诊断和个体化治疗方面的重要性,有助于更好的患者预后。此外,这项研究揭示了MEN1光谱内产生ACTH的胰腺神经内分泌癌的新表现,扩大我们对疾病表现的理解。
    UNASSIGNED: Multiple Endocrine Neoplasia type 1 (MEN1) is an autosomal dominant disorder marked by pathogenic variants in the MEN1 tumor suppressor gene, leading to tumors in the parathyroid glands, pancreas, and pituitary. The occurrence of ACTH-producing pancreatic neuroendocrine carcinoma is exceedingly rare in MEN1.
    UNASSIGNED: This report details a Colombian family harboring a novel MEN1 variant identified through genetic screening initiated by the index case. Affected family members exhibited primary hyperparathyroidism (PHPT) symptoms from their 20s to 50s. Uniquely, the index case developed an ACTH-secreting pancreatic neuroendocrine carcinoma, a rarity in MEN1 syndromes. Proactive screening enabled the early detection of pituitary neuroendocrine tumors (PitNETs) as microadenomas in two carriers, with subsequent surgical or pharmacological intervention based on the clinical presentation.
    UNASSIGNED: Our findings underscore the significance of cascade screening in facilitating the early diagnosis and individualized treatment of MEN1, contributing to better patient outcomes. Additionally, this study brings to light a novel presentation of ACTH-producing pancreatic neuroendocrine carcinoma within the MEN1 spectrum, expanding our understanding of the disease\'s manifestations.
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  • 文章类型: Case Reports
    胰岛素瘤是胰腺最常见的功能性神经内分泌肿瘤,主要临床症状为低血糖。标准的治疗方法是手术,但是有些病人没有资格接受手术,而在那些手术中,围手术期并发症的风险高达30%。二氮嗪治疗预防低血糖仅对50%的患者有效。为了防止肿瘤生长和荷尔蒙过量,立体定向放疗可能是手术治疗的替代方案.在我们的论文中,我们介绍了2例接受立体定向放射治疗(SBRT)成功治疗的胰岛素瘤患者.
    Insulinoma is the most common functional neuroendocrine tumor of the pancreas, with the main clinical symptom being hypoglycemia. The standard treatment is surgery, but some patients are not eligible for surgery, while in those operated on, the risk of perioperative complications is up to 30%. Diazoxide treatment to prevent hypoglycemia is effective only in 50% of patients. To prevent tumor growth and hormonal excess, stereotactic radiotherapy may be an alternative to surgical treatment. In our paper, we present two cases of patients with insulinoma treated successfully with stereotactic body radiation therapy (SBRT).
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  • 文章类型: Case Reports
    原发性胰腺淋巴瘤(PPL)是胃肠道(GI)淋巴瘤的一个亚组。它们是极其罕见的实体,就胰腺恶性肿瘤和结外淋巴瘤而言。流行病学调查由于其稀有性而具有挑战性。这导致临床病理特征缺乏清晰度,鉴别诊断,最好的治疗方案,和PPL的预后。因为临床症状通常是非特异性的,它可以导致一个诊断危险的粗心的医生。术前,区分腺癌和PPL是当务之急,正如他们同样呈现的那样,但治疗方式和预后大不相同。我们在此介绍一例患有阻塞性黄疸并被发现患有PPL的老年男性。
    Primary pancreatic lymphomas (PPLs) are a subgroup of gastrointestinal (GI) lymphomas. They are an exceedingly rare entity, both in terms of pancreatic malignancies and also extranodal lymphomas. Epidemiological investigations have been challenging to do because of their rarity. This has resulted in a lack of clarity on the clinicopathological characteristics, differential diagnosis, best course of treatment, and prognosis of PPL. Because the clinical signs are frequently non-specific, it can lead to a diagnostic hazard for the unwary physician. Preoperatively, it is imperative to distinguish between adenocarcinoma and PPL, as they present similarly, but have vastly different treatment modalities and prognosis. We herein present a case of an elderly man who presented with obstructive jaundice and was found to have PPL.
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  • 文章类型: Journal Article
    胰腺导管腺癌(PDAC)是一种侵袭性疾病,生存率低。迫切需要新的生物标志物通过早期检测来改善结果。这里,我们的目的是在常规健康检查后的诊断前血浆样本中,使用多组组学分析发现用于早期PDAC检测的新型生物标志物.设计了瑞典北部健康与疾病研究中的嵌套病例对照研究。包括在诊断前2.3年内收集的37名未来PDAC患者的诊断前血浆样品和37名匹配的健康对照。我们使用液相色谱质谱和气相色谱质谱分析代谢物,microRNAs通过HTGedgeseq,通过多重邻近延伸测定的蛋白质,以及使用milliplex技术的三种临床生物标志物。对不同的组学类型和临床生物标志物进行有监督和无监督的多组学整合以及单变量分析。使用Benjamini-Hochberg的方法校正了多重假设检验,并且低于0.1的错误发现率(FDR)被认为具有统计学意义。糖类抗原(CA)19-9与PDAC风险相关(OR[95%CI]=3.09[1.31-7.29],FDR=0.03),并且更接近PDAC诊断。受监督的多组模型导致未来PDAC病例和健康对照之间的差别性,获得的准确性在0.429-0.500之间。没有单一的代谢物,microRNA,或蛋白质在未来的PDAC病例和健康对照之间差异改变(FDR<0.1)。CA19-9水平在PDAC诊断前两年增加,但广泛的多组学分析,包括代谢组学,该队列中的microRNA组学和蛋白质组学没有发现PDAC的新型早期生物标志物。
    Pancreatic ductal adenocarcinoma (PDAC) is an aggressive disease with poor survival. Novel biomarkers are urgently needed to improve the outcome through early detection. Here, we aimed to discover novel biomarkers for early PDAC detection using multi-omics profiling in pre-diagnostic plasma samples biobanked after routine health examinations. A nested case-control study within the Northern Sweden Health and Disease Study was designed. Pre-diagnostic plasma samples from 37 future PDAC patients collected within 2.3 years before diagnosis and 37 matched healthy controls were included. We analyzed metabolites using liquid chromatography mass spectrometry and gas chromatography mass spectrometry, microRNAs by HTG edgeseq, proteins by multiplex proximity extension assays, as well as three clinical biomarkers using milliplex technology. Supervised and unsupervised multi-omics integration were performed as well as univariate analyses for the different omics types and clinical biomarkers. Multiple hypothesis testing was corrected using Benjamini-Hochberg\'s method and a false discovery rate (FDR) below 0.1 was considered statistically significant. Carbohydrate antigen (CA) 19-9 was associated with PDAC risk (OR [95 % CI] = 3.09 [1.31-7.29], FDR = 0.03) and increased closer to PDAC diagnosis. Supervised multi-omics models resulted in poor discrimination between future PDAC cases and healthy controls with obtained accuracies between 0.429-0.500. No single metabolite, microRNA, or protein was differentially altered (FDR < 0.1) between future PDAC cases and healthy controls. CA 19-9 levels increase up to two years prior to PDAC diagnosis but extensive multi-omics analysis including metabolomics, microRNAomics and proteomics in this cohort did not identify novel early biomarkers for PDAC.
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    文章类型: Case Reports
    一名87岁的妇女因左大腿疼痛被送往急诊科,并诊断为坐骨神经疼痛。胸部CT扫描显示支气管扩张和树芽,胃液抗酸染色试验阳性;进一步,痰的M.avium-PCR和培养结果均为阳性,从而诊断为肺部非结核分枝杆菌感染(NTM)。腹部CT显示主胰管扩张和胰尾多灶性囊性肿瘤,发现并发导管内乳头状粘液性肿瘤(IPMN)。
    An 87-year-old woman presented to the emergency department with left thigh pain, and sciatic nerve pain was diagnosed. A chest CT scan showed bronchiectasis and tree-in buds and an acid-fast stain test of gastric juice was positive; further, M. avium-PCR of sputum and culture results were positive leading to a diagnosis of pulmonary nontuberculous mycobacterial infection(NTM). Abdominal CT showed dilatation of the main pancreatic duct and a multifocal cystic tumor in the pancreatic tail, which was found to be complicated with an intraductal papillary mucinous tumor(IPMN).
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  • 文章类型: Journal Article
    胰尾切除术和脾切除术被认为是胰尾和体癌的标准手术。然而,对于良性或低度恶性肿瘤,包括黏液性囊腺瘤和导管内乳头状黏液性肿瘤,可选择脾切除术。如果进行了保留脾脏的远端胰腺切除术(SPDP)并根据术后病理发现诊断为胰腺癌,如果是R0切除,额外的脾切除术的必要性仍然值得怀疑。作者希望报告两例SDP术后病理诊断为胰腺癌的临床病例,并且在没有额外脾切除术的情况下进行观察。
    Distal pancreatectomy with splenectomy is considered the standard operation for pancreas tail and body cancer. However, splenectomy may be option for benign or low-grade malignant tumors including mucinous cystadenoma and intraductal papillary mucinous neoplasm. If spleen-preserving distal pancreatectomy (SPDP) with borderline lesion is performed and pancreas cancer is diagnosed on postoperative pathologic finding, if it is R0 resection, the necessity of additional splenectomy remains questionable. The authors would like report two clinical cases diagnosed as pancreatic cancer on postoperative pathology after SPDP and under observation without additional splenectomy.
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