|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Rectal neuroendocrine tumor with uncommon metastatic spread:A case report and review of literature显示文摘Neuroendocrine tumors of the gastrointestinal tract are rare neoplasms. Rectal neuroendocrine tumors consist approximately the 5%-14% of all neuroendocrine neoplasms in Europe. These tumors are diagnosed in relatively young patients,with a mean age at diagnosis of 56 years. Distant metastases from rectal neuroendocrine tumors are not very common. Herein we describe a case of a rectal neuroendocrine tumor which metastasized to the lung,mediastinum and orbit. This case underscores the importance of early identification and optimal management to improve patient's prognosis. Therefore,the clinical significance of this case is the necessity of physicians' awareness and education regarding neuroendocrine tumors' diagnosis and management. | Nikolaos Tsoukalas Michail Galanopoulos Maria Tolia Maria Kiakou Georgios Nakos Aristoula Papakostidi Georgios Koumakis | 2016 | World Journal of Gastrointestinal Oncology2016，8，2： | 3 |
| 2 | Abnormal DNA methylation as a cell-free circulating DNA biomarker for colorectal cancer detection:A review of literature显示文摘Colorectal cancer(CRC) is one of the most prevalent malignancies in the world. CRC-associated morbidity and mortality is continuously increasing, in part due to a lack of early detection. The existing screening tools such as colonoscopy, are invasive and yet high cost, affecting the willingness of patients to participate in screening programs. In recent years, evidence is accumulating that the interaction of aberrant genetic and epigenetic modifications is the cornerstone for the CRC development and progression by alternating the function of tumor suppressor genes, DNA repair genes and oncogenes of colonic cells. Apart from the understanding of the underlying mechanism(s) of carcinogenesis, the aforementioned interaction has also allowed identification of clinical biomarkers, especially epigenetic, for the early detection and prognosis of cancer patients. One of the ways to detect these epigenetic biomarkers is the cell-free circulating DNA(circ DNA), a blood-based cancer diagnostic test, mainly focusing in the molecular alterations found in tumor cells, such as DNA mutations and DNA methylation.In this brief review, we epitomize the current knowledge on the research in circ DNA biomarkers-mainly focusing on DNA methylation-as potential blood-based tests for early detection of colorectal cancer and the challenges for validation and globally implementation of this emergent technology. | Michail Galanopoulos Nikolaos Tsoukalas Ioannis S Papanikolaou Maria Tolia Maria Gazouli Gerassimos J Mantzaris | 2017 | World Journal of Gastrointestinal Oncology2017，9，4： | 2 |
| 3 | Adjuvant chemotherapy and acute toxicity in hypofractionated radiotherapy for early breast cancer显示文摘AIM: To evaluate the effect of chemotherapy to the acute toxicity of a hypofractionated radiotherapy(HFRT) schedule for breast cancer. METHODS: We retrospectively analyzed 116 breast cancer patients with T1, 2N0 Mx. The patients received3-D conformal radiotherapy with a total physical dose of 50.54 Gy or 53.2 Gy in 19 or 20 fractions according to stage, over 23-24 d. The last three to four fractions were delivered as a sequential tumor boost. All patients were monitored for acute skin toxicity according to the European Organization for Research and Treatment of Cancer/Radiation Therapy Oncology Group criteria. The maximum monitored value was taken as the final grading score. Multivariate analysis was performed for the contribution of age, chemotherapy and 19 vs 20 fractions to the radiation acute skin toxicity.RESULTS: The acute radiation induced skin toxicity was as following: grade Ⅰ 27.6%, grade Ⅱ 7.8% and grade Ⅲ 2.6%. No significant correlation was noted between toxicity grading and chemotherapy(P = 0.154, χ2 test). The mean values of acute toxicity score in terms of chemotherapy or not, were 0.64 and 0.46 respectively(P = 0.109, Mann Whitney test). No significant correlation was also noted between acute skin toxicity and radiotherapy fractions(P = 0.47, χ2test). According to univariate analysis, only chemotherapy contributed significantly to the development of acute skin toxicity but with a critical value of P = 0.05. However, in multivariate analysis, chemotherapy lost its statistical significance. None of the patients during the 2-years of follow-up presented any locoregional relapse.CONCLUSION: There is no clear evidence that chemotherapy has an impact to acute skin toxicity after an HFRT schedule. A randomized trial is needed for definite conclusions. | Vassilis Kouloulias Anna Zygogianni Efrosini Kypraiou John Georgakopoulos Zoi Thrapsanioti Ivelina Beli Eftychia Mosa Amanta Psyrri Christos Antypas Christina Armbilia Maria Tolia Kalliopi Platoni Christos Papadimitriou Nikolaos Arkadopoulos Costas Gennatas George Zografos George Kyrgias Maria Dilvoi George Patatoucas Nikolaos Kelekis John Kouvaris | 2014 | World Journal of Clinical Cases2014，2，11： | 1 |
| 4 | Trimodality treatment in gastric and gastroesophageal junction cancers:Current approach and future perspectives显示文摘Gastric and gastroesophageal junction(GEJ)cancers represent an aggressive group of malignancies with poor prognosis even when diagnosed in relatively early stage,with an increasing incidence both in Asia and in Western countries.These cancers are characterized by heterogeneity as a result of different pathogenetic mechanisms as shown in recent molecular analyses.Accordingly,the understanding of phenotypic and genotypic correlations/classifications has been improved.Current therapeutic strategies have also advanced and moved beyond surgical extirpation alone,with the incorporation of other treatment modalities,such as radiation and chemotherapy(including biologics).Chemoradiotherapy has been used as postoperative treatment after suboptimal gastrectomy to ensure local disease control but also improvement in survival.Preoperative chemoradiotherapy/chemotherapy has been employed to increase the chance of a successful R0 resection and pathologic complete response rate,which is associated with improved long-term outcomes.Several studies have defined various chemotherapy regimens to accompany radiation(before and after surgery).Recently,addition of immunotherapy after trimodality of gastroesophageal cancer has produced an advantage in disease-free interval.Targeted agents used in the metastatic setting are being investigated in the early setting with mixed results.The aim of this review is to summarize the existing data on trimodality approaches for gastric and GEJ cancers,highlight the remaining questions and present the current research effort addressing them. | Nikolaos Charalampakis Sergios Tsakatikas Dimitrios Schizas Stylianos Kykalos Maria Tolia Rodanthi Fioretzaki Georgios Papageorgiou Ioannis Katsaros Ahmed Adel Fouad Abdelhakeem Matheus Sewastjanow-Silva Jane E Rogers Jaffer A Ajani | 2022 | World Journal of Gastrointestinal Oncology2022，14，1： | 0 |
| 5 | Assessment of contralateral mammary gland dose in the treatment of breast cancer using accelerated hypofractionated radiotherapy显示文摘AIM:To measure the dose distribution,related to the treatment planning calculations,in the contralateral mammary gland of breast cancer patients treated with accelerated hypofractionated 3-dimensional conformal radiotherapy.METHODS:Thirty-four prospectively selected female patients with right breast cancer (pN0,negative surgical margins) were treated with breast-conserving surgery.A total dose of 42.5 Gy (2.66 Gy/fraction) was prescribed;it was requested that planning target volumes be covered by the 95% isodose line.The contralateral mam-mary gland was defined on CT simulation.The dose received was evaluated by dose volume histograms.RESULTS:The measured contralateral breast doses were:(1) Dose maximum:290-448 cGy [Equivalent (Eq) 337-522 cGy];(2) Mean dose:45-70 cGy (Eq 524815 cGy);and (3) Median dose:29-47 cGy (337-547 cGy) for total primary breast dose of 42.5 Gy in 16 equal fractions.The spearman rho correlation showed statistical significance between the contralateral breast volume and maximum dose (P=0.0292),as well as mean dose (P=0.0025) and median dose (P=0.046) to the breast.CONCLUSION:Minimizing the dose to the contralateral breast has to be one of the priorities of the radiation oncologist when using short schedules because of the radiosensitivity of this organ at risk.Further study is necessary to assess the long-term clinical impact of this schedule. | Maria Tolia Kalliopi Platoni Andreas Foteineas Maria-Aggeliki Kalogeridi Anna Zygogianni Nikolaos Tsoukalas Mariangela Caimi Niki Margari Maria Dilvoi Panagiotis Pantelakos John Kouvaris Vassilis Kouloulias | 2011 | World Journal of Radiology2011，3，9： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员