Laparoscopic spleen-preserving total pancreatectomy for the treatment of low-grade malignant pancreatic tumors:Two case reports and review of literature

BACKGROUND Function-preserving pancreatectomy can improve the long-term quality of life of patients with benign or low-grade malignant tumors,such as intraductal papillary mucinous neoplasms(IPMNs)and mucinous cystic neoplasms.However,there is limited literature on laparoscopic spleen-preserving total pancreatectomy(LSpTP)due to technical difficulties.CASE SUMMARY Patient 1 was a 51-year-old male diagnosed with IPMN based on preoperative imaging,showing solid nodules in the pancreatic head and diffuse dilation of the main pancreatic duct with atrophy of the distal pancreas.We performed L-SpTP with preservation of the splenic vessels,and the postoperative pathology report revealed IPMN with invasive carcinoma.Patient 2 was a 60-year-old male with multiple cystic lesions in the pancreatic head and body.L-SpTP was performed,and intraoperatively,the splenic vein was injured and required ligation.Postoperative pathology revealed a mucinous cystic tumor of the pancreas with low-grade dysplasia.Both patients were discharged on postoperative day 7,and there were no major complications during the perioperative period.CONCLUSION We believe that L-SpTP is a safe and feasible treatment for low-grade malignant pancreatic tumors,but more case studies are needed to evaluate its safety,efficacy,and long-term outcomes.

Evaluation the effect of fertility-preserving surgery on young patients with malignant ovarian tumors

Objection： To evaluate the impact of fertility-preserving surgery and adjuvant chemotherapy on survival and fertility of young patients with ovarian malignant tumors. Methods： Retrospective analysis of 39 patients with ovarian malignant germ cell tumors, 23 patients with malignant epithelial tumors and 4 patients with sexual cord mesenchymal tumors receiving conservative treatments. Results： Two patients lost follow-up （we do not statistics them）. Fifty-nine among 64 patients were alive up to now （92.19%）. The overall survival rate for ovarian epithelial malignancies, malignant germ cell tumors and sexual cord mesenchymal tumors were 95.45%, 89.47% and 100% respectively. Fifteen patients received second operation and recurrence was found in 6 patients. Among the 59 surviving patients, 53 patients have normal menstruation. Thirteen patients among 20 patients who want to pregnant have 15 pregnancies and 9 successful deliveries. Conclusion： The management of fertility-preserving surgery on patients with ovarian malignant germ cell tumors, whatever the FIGO staging is, is a safe option. For patients with ovarian epithelial carcinomas, fertility-preserving surgery only confined to low-stage （stage Ⅰ）, low-grade （G1）, and patients who want keep fertility function seriously. Cisplatinum-based combination chemotherapy is necessary. Standardized chemotherapy has no affection on fertility function.

Clinical Application Significance of Nutritional Support Therapy in Patients with End-stage Malignant Tumor

To analyze the effect of nutritional support on clinical efficacy in patients with end-stage malignant tumors.Sample data collection was conducted from April 2015 to July 2017.54 patients with end-stage malignant tumors were enrolled in the study.They were divided into reference group(n=27)and experimental group(n=27)by double-blind method.Conventional treatment was used in the reference group,while nutritional support therapy was used in the experimental group.The treatment effects of the two groups were compared.Post-treatment effect of the experimental group and the reference group was compared using the parameters including total adverse reaction value,cancer-related fatigue score,quality of life,A/G,AS:AL,alkaline phosphatase(ALP),blood urea nitrogen(BUN),anorexia score,ALB,and uric acid(UA).The parameters such as A/G,AS:AL,ALP,BUN,anorexia score,ALB,and UA were also used to compare between pre-and post-treatment.The value of P<0.05 was used to indicate the statistical significance of the test.Conclusion:Nutritional support therapy had a superior effect in patients with end-stage malignant tumors.

Huge pelvi-abdominal malignant inflammatory myofibroblastic tumor with rapid recurrence in a 14-year-old boy

Inflammatory myofibroblastic tumor(IMT) is an uncommon benign neoplasm with locally aggressive behavior but malignant change is rare.We report an unusual case of pelvic-abdominal inflammatory myofibroblastic tumor with malignant transformation in a 14-year-old boy presenting with abdominal pain and 9 kg body weight loss in one month.Computed tomography revealed a huge pelvi-abdominal mass(30 cm),possibly originating from the pelvic extraperitoneal space,protruding into the abdomen leading to upward displacement of the bowel loops,downward displacement of the urinary bladder,massive central necrosis,a well-enhanced peripheral solid component with prominent peritumoral vascularity.Subsequent examination confirmed the computed tomographic findings.Histopathologic examination revealed proliferative epitheloid and spindle cells,inflammatory cell infiltration and high mitotic counts.Immunohistochemistry was strongly positive for anaplastic lymphoma kinase and revealed a high proliferative index(ki-67 = 40%).DNA sequencing and electronic microscopy further confirmed the primitive fibroblastic cell phenotype of the tumor and a final diagnosis of inflammatory myofibroblastic tumor with malignant transformation was established.Rapid tumor recurrence was noted 20 d after radical tumor resection.To our knowledge,this is the largest documented case of IMT in a pediatric patient and the first report of IMT with malignant transformation originating from the pelvic extraperitoneal space.

Primary hepatic solitary fibrous tumor with histologically benign and malignant areas

Extrapleural solitary fibrous tumor （SFT） is an uncommon mesenchymal neoplasm, presenting most commonly in the intrathoracic sites but which has been reported at nu- merous extrathoracic locations. The majority of intra-thoracic SFTs are benign, but 10%-15% behave aggressively. We report a case of primary hepatic SFT with histologically benign and ma- lignant areas. A 65-year-old man underwent an abdominal CT scan following a cerebrovascular accident, which demonstrated a sharply demarcated large liver mass with a heterogenous enhancing area and occupying most of the left lobe of the liver. Histological examination following a hemihepatectomy showed an SFT with morphological patterns ranging from benign to malignant areas, including pleomorphism, increased cellularity, herringbone pattern, necrosis and a raised mitotic count. On review of the literature, only an occasional case report with malignant areas in a hepatic SFT was identified. This case highlights that SFT should be included in the differential diagnosis of a hepatic spindle cell lesion, and that on rare occasions, malignant areas can occur in this already uncommon neoplasm.

Clinicopathological study of malignant peripheral nerve sheath tumors in the head and neck:Case reports and review of literature

BACKGROUND Malignant peripheral nerve sheath tumor(MPNST)is a rare and aggressive soft tissue sarcoma that poses a major diagnostic and therapeutic challenge.CASE SUMMARY We retrospectively reviewed patients with head and neck MPNSTs treated in our hospital from 2000 to 2021.The clinical features,pathological manifestations,treatments,and prognoses were summarized.We also reviewed the literature,focusing on MPNST in the mandible and maxilla.The study population consisted of five women and five men aged 22–75 years(mean age,49 years).Of the 10 patients,7 were initial cases and 3 were recurrent cases.All lesions were sporadic.The most common site was the mandible.The most frequently encountered symptoms were a progressive mass and local swelling.Complete or partial loss of trimethylation at lysine 27 of histone H3(H3K27me3)was evident on staining in four of nine cases(one case was excluded due to lack of tissue for evaluation of loss of H3K27me3).The 2-and 5-year disease-specific survival rates were 86%a nd 43%,respectively.The average survival time was 64 mo.CONCLUSION MPNST is a highly malignant tumor with a poor prognosis,prone to a high risk of recurrence and distant metastasis.Complete surgical resection is the main treatment.

Oncology and reproductive outcomes over 16 years of malignant ovarian germ cell tumors treated by fertility sparing surgery

BACKGROUND Malignant ovarian germ cell tumors(MOGCT)are rare and frequently occur in women of young and reproductive age and the oncologic and reproductive outcomes after fertility-sparing surgery(FSS)for this disease are still limited.AIM To evaluate the oncology and reproductive outcomes of MOGCT patients who underwent FSS.METHODS All MOGCT patients who underwent FSS defined as the operation with a preserved uterus and at least one side of the ovary at our institute between January 2005 and December 2020 were retrospectively reviewed.RESULTS Sixty-two patients were recruited for this study.The median age was 22 years old and over 77%were nulliparous.The three most common histology findings were immature teratoma(32.2%),dysgerminoma(24.2%),and yolk sac tumor(24.2%).The distribution of stage was as follows;Stage I,74.8%;stage II,9.7%;stage III,11.3%;and stage IV,4.8%.Forty-three(67.7%)patients received adjuvant chemotherapy.With a median follow-up time of 96.3 mo,the 10-year progressionfree survival and overall survival were 82.4%and 91%,respectively.For reproductive outcomes,of 43 patients who received adjuvant chemotherapy,18(41.9%)had normal menstruation,and 17(39.5%)resumed menstruation with a median time of 4 mo.Of about 14 patients who desired to conceive,four were pregnant and delivered good outcomes.Only one case was aborted.Therefore,the successful pregnancy rate was 28.6%CONCLUSION The oncology and reproductive outcomes of MOGCT treated by FSS are excellent.Many patients show a long survival time with normal menstruation.However,the obstetric outcome is not quite satisfactory.

Microsatellite instability and expression of DNA mismatch repair genes in malignant astrocytic tumors from adult and pediatric patients

Microsatellite instability (MSI) is used as a molecular marker for defective DNA mismatch repair (MMR) genes.We report here alterations of MSI in 15 malignant astrocytomas (WHO grade Ⅲ) and glioblastomas (GBM; WHO grade Ⅳ) of pediatric patients (2-21 years) and 12 GBM from adults (44-68 years) by comparative analysis of BAT25/BAT26 loci and 10 other microsatellite markers. High-level microsatellite instability (MSI-H) occurred in 4 of the 15 pediatric cases (26.7%) and in 1 of the 12 adult GBM cases (8.3%). Low-level mi-

A RETROSPECTIVE ANALYSIS OF SURGICAL TREATMENT FOR BREAST MALIGNANT TUMORS

Objective: To review the evolution of the current surgical treatment for breast malignant tumors over the past twenty years in the First Hospital of Jilin University (the former Bethune University of Medical Sciences). Methods: 1195 eligible patients with primary breast malignant tumor diagnosed and surgically treated at the First Teaching Hospital from January 1980 and December 2000 were retrospectively analyzed. Results: The peak frequency was in 40–49 years of age (40.00%), the age of the patients with breast malignant tumors trends to become young. The most common pTNM classification was Stage II. The most common histological type was infiltrating ductal carcinoma (398 patients, 33.31%), and simple carcinoma (279 patients, 23.53%). Modified radical mastectomy was the most common operation procedure performed (779 patients, 65.19%), and was increasingly used while radical mastectomy was adopted decreasingly in recent decade. Conclusion: The variation of operation procedures performed on patients with breast malignant tumors reflected the advance of our understanding of the biology of cancer and the progression of new treatment principles.

Clinical Study of Aminolevulinic Acid-mediated Acid Photodynamic Therapy Combined with Surgical Therapy of Skin Malignant Tumor

The purpose of the study was to analyze the effects of aminolevulinic acid-mediated photodynamic therapy(ALA-PDT)combined with surgery and its prognostic implications.Firstly,70 cases of skin malignant tumors admitted to the dermatology department of our hospital from January 2017 to December 2018 were selected and divided into observation group and control group according to the random number table,with 35 patients in each group.Observation group adopted the ALA-PDT combined with surgery therapy,and control group adopted surgery therapy.Two groups of patients were last follow-up to December 2019.The results showed that the total effective rate of clinical treatment in the observation group was significantly higher than that in the control group(P<0.05),indicating that based on the basis of conventional surgical treatment,combined use of ALA-PDT can effectively improve the clinical therapeutic effect and better promote the patient’s health recovery.Therefore,combined with surgical treatment,ALA-PDT can improve the clinical efficacy of skin malignant tumors with fewer adverse reactions,high safety,low recurrence rate and ideal long-term prognosis.

Role of vascular endothelial growth factor in reconstructive surgery after surgical excision of malignant tumor

As a key mediator of normal physiological angiogenesis, vascular endothelial growth factor(VEGF) has been regarded as an emancipator to plastic surgeon, and yet a misfortune to oncology surgeon, due to its singular biological effect. Therefore in some clinical cases, especially for some malignant tumor patients having endured radical surgery and being craving for a reconstructive surgery, VEGF plays a role full of paradoxes. To make a clinical balance, we should find a point to inhibit tumor cell from utilizing VEGF and make a permission to normal tissues to employ it.

Biliary stent combined with iodine-125 seed strand implantation in malignant obstructive jaundice

BACKGROUND Malignant obstructive jaundice is mainly caused by cholangiocarcinoma.Only a few patients are indicated for surgical resection,and the 3-year survival rate is<50%.For patients who are not eligible for surgery,biliary stent placement can relieve biliary obstruction and improve liver function and quality of life.However,restenosis after biliary stents has a poor prognosis and is a clinical challenge.Biliary stent combined with iodine-125(125I)seed implantation can prolong stent patency and improve survival.AIM To evaluate the safety and efficacy of biliary stent combined with 125I seed strand implantation in malignant obstructive jaundice.METHODS We enrolled 67 patients between January 2016 and June 2018 with malignant obstructive jaundice and randomized them into a biliary stent combined with 125I seed strand treatment(combined)group(n=32)and biliary stent(control)group(n=35).All patients underwent enhanced computed tomography and magnetic resonance imaging and were tested for biochemical and cancer markers.Twelve patients underwent pathological examination before surgery.All patients were followed up by telephone or clinical visit.Postoperative liver function improvement,postoperative complications,stent patency time,and survival time were compared between the two groups.Prognostic risk factors were evaluated.RESULTS Technical success was achieved in all patients in both groups.Postoperative liver function improved significantly in all patients(total bilirubin,direct bilirubin,alanine aminotransferase,and aspartate aminotransferase decreased significantly in all patients,the P values were less than 0.05).There was no significant difference in preoperative or postoperative indexes between the two groups for changes in total bilirubin(P=0.147),direct bilirubin(P=0.448),alanine aminotransferase(P=0.120),and aspartate aminotransferase(P=0.387)between the two groups.The median stent patency time of the combined group was 9.0±1.4 mo[95%confidence interval(CI):6.3-11.8 mo],which was significantly longer than the that of the control group(6.0±0.3 mo,95%CI:5.5-6.5 mo,P=0.000).The median survival time of the combined group was 11.0±1.4 mo(95%CI:8.2-13.7 mo),which was significantly longer than that of the control group(7.0±0.3 mo,95%CI:6.4-7.6 mo,P=0.000).Location of obstruction and number of stents were independent risk factors affecting prognosis.CONCLUSION Biliary stent combined with 125I seed strand implantation is safe and effective in malignant obstructive jaundice and improves stent patency time and median survival time.

Urinary bladder malignant paraganglioma with vertebral metastasis:a case report with literature review

Paraganglioma is a rare neuroendocrine neoplasm observed in patients of all ages, with an estimated incidence of 3/1,000,000 population. It has long been recognized that some cases are familial. The majority of these tumors are benign, and the only absolute criterion for malignancy is the presence of metastases at sites where chromaffin tissue is not usually found. Some tumors show gross local invasion and recurrence, which may indeed kill the patient, but this does not necessarily associate with metastatic potential. Here, we report a case of vertebral metastatic paraganglioma that occurred 19 months after the patient had undergone partial cystectomy for urinary bladder paraganglioma. We believe this to be a rarely reported bone metastasis of paraganglioma arising originally within the urinary bladder. In this report, we also provide a summary of the general characteristics of this disease, together with progress in diagnosis, treatment, and prognosis.

Evolution-driven crosstalk between glioblastoma and the tumor microenvironment

Glioblastoma(GBM)is a malignant adult brain tumor for which 90%of patients experience recurrence within a year after surgery1.Evolution confers treatment resistance capabilities on tumors2.The diversification of malignant and non-malignant(i.e.,stromal and immune cell)compartments in the tumor microenvironment(TME)during tumor evolution3-7 eventually results in the formation of a complex interaction network that promotes tumor progression.

手术机器人在妇科恶性肿瘤手术中的临床应用分析

目的:分析探讨机器人辅助下妇科恶性肿瘤手术的安全性、可行性及临床价值。方法:回顾性总结吉林省肿瘤医院2014年10月—2020年3月实施的213例达芬奇机器人妇科恶性肿瘤手术病例,其中宫颈癌122例,子宫内膜癌89例,卵巢癌(补充手术)1例,阴道癌1例。分析患者的临床资料、手术情况及治疗效果,并对手术时间、术中失血量、术后肠道功能恢复时间、膀胱功能恢复时间、腹部切口愈合时间、淋巴结切除数目、术后并发症发生情况(出血、感染、尿潴留、肠梗阻、下肢静脉血栓等)、总住院时间、至少1年的随访结果等指标进行评估。结果:213例手术均顺利完成,无中转开腹或更改术式。无术中并发症(如重要血管大出血,膀胱、输尿管、肠道损伤等)发生。术后出现双侧淋巴囊肿4例,单侧淋巴囊肿10例,其中1例淋巴囊肿感染,经超声穿刺、抗感染后好转,其余经对症处置后减轻;单侧下肢肌间静脉血栓1例,经溶栓治疗后好转;尿潴留1例,经膀胱功能锻炼后导尿管顺利拔出;阴道断端愈合差1例,经阴道消毒、上药后愈合良好。术后规范治疗,随访时间为12~52个月,其中1例宫颈高级别神经内分泌癌患者于术后13个月发生肺转移、锁骨上淋巴结转移,于术后25个月死亡;1例阴道癌患者于治疗结束31个月后复发,后放弃治疗失访;1例卵巢癌补充根治术患者于术后17个月复发,后放弃治疗并死亡。结论:达芬奇机器人手术系统应用于妇科恶性肿瘤手术安全、可行,其微创优势明显,患者创伤小、出血少、恢复快,手术安全性高,具有临床应用价值,值得临床推广。

恶性肿瘤诊疗中实施医患共同决策的困境与前景

近年来医患共同决策(SDM)理念逐渐兴起,越来越多的恶性肿瘤患者愿意积极参与临床决策,结合自身价值需求,同医师共同讨论、制订精准而个体化的诊疗方案。SDM模式不仅无损于治疗结局,还能提高患者满意度、治疗依从性、生活质量、心理状态、自我效能及更少的住院费用。然而囿于医患关系紧张,医生理念/知识更新缓慢、沟通能力欠缺,患者经济、社会背景差异及家属干预等多方面因素,SDM在中国面临诸多困境与挑战,在肿瘤患者诊疗中尚未广泛有效实施。

头颈部恶性肿瘤研究模型的演化

恶性肿瘤发生发展的机制探索以及抗癌药物治疗疗效的评估均有赖于各种体内与体外研究模型的建立。近几十年间,随着生物医学技术的快速发展,恶性肿瘤的体内外研究模型也发生了巨大的变化。基因检测技术从单基因到多基因的进展促进了生物信息学飞速发展和恶性肿瘤概念的转变;体外细胞研究模型从单层的二维培养、原代培养向立体的三维构型发展,从而更好地重现肿瘤组织的细胞间交互作用与功能;体内动物研究模型由传统的致癌物诱导、细胞或组织形成移植瘤逐渐演变为基因编辑的动物模型或人源性肿瘤异种移植模型,从而可以针对性地研究相关基因在肿瘤发生发展中的作用;传统的临床研究也从简单的临床回顾性研究更多地向前瞻性研究转变,Ⅰ期/Ⅱ期/Ⅲ期临床研究,研究者发起的临床研究以及真实世界临床研究,这些研究为临床研究增添了活力。目前恶性肿瘤研究模型存在的主要不足包括模型的单一性、对肿瘤微环境的模拟不足、动物肿瘤模型与人类肿瘤差异性,以及缺乏对个性化医疗的考量。未来仍需要进一步研发和优化研究模型,并更有效地将不同模型整合起来,形成一个优化的整体实验模型系统。本文将系统回顾恶性肿瘤研究模型的演化并对相关模型进行阐述,为科研工作者进行恶性肿瘤的研究提供合理的研究模型。

保乳术联合前哨淋巴结活检术对乳腺癌患者生活质量、应激水平及血清肿瘤标志物的影响

目的:探究保乳术联合前哨淋巴结活检术对乳腺癌患者生活质量、应激水平及血清肿瘤标志物的影响。方法:回顾性研究常熟市第五人民医院2017年2月—2021年12月收治的102例乳腺癌患者的病例资料。根据治疗方案将其分为对照组和观察组,其中对照组51例接受保乳术治疗,观察组51例接受保乳术联合前哨淋巴结活检术治疗。比较两组手术指标,生活质量的情况、应激水平血管紧张素Ⅱ(AngⅡ)、肾上腺素(AD)、检测血清肿瘤标志物水平。结果:观察组手术时间短于对照组,术后引流量少于对照组(P<0.05)。两组1年后生活质量评分(总体健康、生理职能、生理功能、活力、躯体疼痛、社会功能、情感职能、精神健康)比较,差异均有统计学意义(P<0.05)。术前0.5 h,两组应激反应相关指标对比,差异均无统计学意义(P>0.05);术后1 d,两组AD、AngⅡ水平均升高(P>0.05),观察组AD、AngⅡ水平均低于对照组(P<0.05)。术前0.5 h,两组血清癌胚抗原(CEA)和糖类抗原153(CA153)水平比较,差异均无统计学意义(P>0.05);术后1 d,两组血清CA153、CEA水平均低于术前0.5 h(P<0.05),观察组CA153、CEA水平均低于对照组(P<0.05)。结论:保乳术联合前哨淋巴结活检术应用于乳腺癌患者治疗中,更有助于缩短手术时间等手术指标,提高患者的生活质量,调节应激反应,且术后短期肿瘤标志物调节水平较低。

低分子肝素钙联合逐级加压弹力袜预防妇科恶性肿瘤患者术后下肢深静脉血栓的临床研究

目的探讨低分子肝素钙联合逐级加压弹力袜预防妇科恶性肿瘤患者术后下肢深静脉血栓(DVT)的临床效果。方法选取2022年1—12月于赣南医学院第一附属医院经外科手术治疗的180例妇科肿瘤患者作为研究对象,按照随机数字表法分为对照组与研究组,每组90例。对照组予低分子肝素钙进行常规治疗,研究组在对照组基础上联合逐级加压弹力袜治疗。比较两组血清学指标、凝血功能指标、血流速度、下肢周径及术后DVT发生情况。结果干预后,研究组血小板计数、纤维蛋白原、D-二聚体水平均低于对照组,差异有统计学意义(P<0.05)。干预后,研究组活化部分凝血活酶时间、凝血酶原时间、凝血酶时间均长于对照组,下肢血流峰速、血流平均速度均快于对照组,差异有统计学意义(P<0.05)。干预后,研究组下肢周径短于对照组,术后下肢DVT发生率低于对照组,差异有统计学意义(P<0.05)。结论低分子肝素钙联合逐级加压弹力袜治疗经外科手术的妇科肿瘤患者,有助于预防术后DVT形成,改善机体血流状态,值得临床推广应用。

急性冠脉综合征合并恶性肿瘤患者冠脉介入术后的预后分析

目的 分析急性冠脉综合征(ACS)合并恶性肿瘤患者经冠脉介入术后的预后。方法 回顾性分析84例行冠脉介入术治疗的ACS合并恶性肿瘤患者的病历有关资料。在患者行冠脉介入术治疗后进行2年随访,依据患者的临床结局将其分为生存组与死亡组。运用多因素Logistic回归分析模型探究ACS合并恶性肿瘤患者行冠脉介入术治疗后死亡的影响因素。结果 随访2年,84例行冠脉介入术治疗的ACS合并恶性肿瘤患者中,共14例死亡,70例生存。单因素分析显示:年龄、性别、高血压、体重指数(BMI)、陈旧性心肌梗死、高脂血症、血红蛋白(HB)、肠外抗凝治疗与ACS合并恶性肿瘤患者冠脉介入术后死亡无关(P>0.05),糖尿病、吸烟、脑钠肽(BNP)水平、血小板计数(PLT)与ACS合并恶性肿瘤患者冠脉介入术后死亡有关(P<0.05);多因素Logistic回归分析显示:糖尿病(OR=9.167,95%CI=2.311~36.360)、吸烟(OR=16.105,95%CI=3.294~78.734)、BNP水平升高(OR=19.759,95%CI=4.634~359.79)、PLT减少(OR=18.231,95%CI=3.954~230.64)为ACS合并恶性肿瘤患者冠脉介入术后死亡的主要影响因素(P<0.05)。结论 ACS合并恶性肿瘤患者经冠脉介入治疗后死亡率较高,死亡的发生与糖尿病、吸烟、BNP水平升高、PLT减少有关,临床需予以高度重视,并针对性开展医疗干预,以最大程度改善患者预后。