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Oncologic outcomes of human papillomavirus-associated oropharynx carcinoma treated with surgery alone: A 12-institution study of 344 patients.

Cancer 2021 May 6. Epub 2021 May 6.

Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.

Background: The oncologic outcomes of surgery alone for patients with American Joint Committee on Cancer 7th edition (AJCC 7th) pN2a and pN2b human papillomavirus-associated oropharynx squamous cell carcinoma (HPV+OPSCC) are not clear.

Methods: The authors performed a 12-institution retrospective study of 344 consecutive patients with HPV+OPSCC (AJCC 7th pT0-3 N3 M0) treated with surgery alone with 6 months or more of follow-up using univariate and multivariate analyses.

Results: The 2-year outcomes for the entire cohort were 91% (182 of 200) disease-free survival (DFS), 100% (200 of 200) disease-specific survival (DSS), and 98% (200 of 204) overall survival (OS). Read More

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Comparison of Breast Cancer Staging Systems After Neoadjuvant Chemotherapy.

Ann Surg Oncol 2021 May 6. Epub 2021 May 6.

Division of Breast Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA.

Background: No consensus exists for optimal staging following neoadjuvant chemotherapy (NAC). We compared the performance of the American Joint Committee on Cancer (AJCC) pathologic prognostic staging system, Residual Cancer Burden (RCB) Index, and the Neo-Bioscore in breast cancer patients after NAC.

Methods: Patients with stage I-III breast cancer who received NAC at Dana-Farber Cancer Institute from 2004 to 2014 were identified. Read More

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Clinical Outcomes Among Major Breast Cancer Subtypes After Neoadjuvant Chemotherapy: Impact on Breast Cancer Recurrence and Survival.

Anticancer Res 2021 May;41(5):2697-2709

Department of Breast Surgery, Campus Bio-Medico University, Rome, Italy.

Background/aim: Prior studies have underlined the prognostic relevance of pathological complete response (pCR) after neoadjuvant chemotherapy (NAC) in breast cancer. However, an accurate demonstration of treatment efficacy is dependent on its potential to predict long-term outcomes of recurrence and death, and this issue remains somewhat controversial.

Patients And Methods: One hundred and sixty-nine patients with breast cancer (BC) treated with NAC followed by surgery were enrolled in this retrospective study. Read More

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Malignant tumours of the parotid gland: management of the neck (including the clinically negative neck) and a literature review.

Br J Oral Maxillofac Surg 2020 Aug 27. Epub 2020 Aug 27.

Department of Neurosciences, Reproductive and Odontostomatological Sciences, Federico II University of Naples, Naples, Italy.

Major salivary gland malignancies are rare, constituting 1%-3% of head-neck tumours. The surgical management of the clinically negative neck (cN0) does not have a univocal consensus yet. We have carried out a retrospective study on 119 cases of malignant parotid tumours that were surgically treated between January 1999 and January 2014. Read More

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Uracil-tegafur vs fluorouracil as postoperative adjuvant chemotherapy in Stage II and III colon cancer: A nationwide cohort study and meta-analysis.

Medicine (Baltimore) 2021 May;100(18):e25756

School of Public Health.

Abstract: We conducted a population-based cohort study enrolling patients with Stage II and III colon cancer receiving postoperative adjuvant chemotherapy with uracil and tegafur (UFT) or fluorouracil (5-FU) from the Taiwan National Health Insurance Research Database from 2000 to 2015. The outcomes of the current study were disease-free survival (DFS) and overall survival (OS). Hazard ratios (HRs) were calculated by multivariate Cox proportional hazard regression models. Read More

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polymorphism predicts response to oxaliplatin-based adjuvant chemotherapy in patients with colon cancer.

Am J Cancer Res 2021 15;11(4):1522-1539. Epub 2021 Apr 15.

Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs Beijing 100021, China.

Response to oxaliplatin-based adjuvant chemotherapy varies among patients with stage II and III colon cancer; however, genetic alterations associated with this response remain incompletely characterized. A three-stage analytical framework, including the discovery, validation, and replication stages, was designed to explore genetic alterations modulating response to oxaliplatin-based chemotherapy in adjuvant setting among patients with stage II and III colon cancer receiving complete resection of tumor. Except for several somatic mutated genes, such as and , showing less definitive associations with response to oxaliplatin-based adjuvant chemotherapy, we found stable associations of rs6891545C > A polymorphism in gene, a key component of DNA damage response system, with the response across all three stages. Read More

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Systematic review of charged-particle therapy for chordomas and sarcomas of the mobile spine and sacrum.

Neurosurg Focus 2021 May;50(5):E17

1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland.

Objective: Long-term local control in patients with primary chordoma and sarcoma of the spine and sacrum is increasingly reliant upon en bloc resection with negative margins. At many institutions, adjuvant radiation is recommended; definitive radiation is also recommended for the treatment of unresectable tumors. Because of the high off-target radiation toxicities associated with conventional radiotherapy, there has been growing interest in the use of proton and heavy-ion therapies. Read More

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Safety and oncologic efficacy of percutaneous MRI-guided cryoablation of intraparenchymal renal cancers.

Diagn Interv Imaging 2021 Apr 27. Epub 2021 Apr 27.

Department of Interventional Radiology, University Hospital of Strasbourg, 67091 Strasbourg cedex, France; School of Biomedical Engineering and Imaging Sciences, King's College London, Strand, WC2R 2LS London, United Kingdom.

Purpose: The purpose of this study was to evaluate the safety and oncologic efficacy of percutaneous magnetic resonance imaging (MRI)-guided cryoablation of intraparenchymal renal cancer.

Materials And Methods: Between February 2009 and August 2019, 31 consecutives patients with 31 entirely intraparenchymal biopsy-proven renal cancers were treated with cryoablation under MRI-guidance in our institution, and were retrospectively included. There were 20 men and 11 women with a mean age of 68. Read More

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Pretreatment [F]FDG PET/CT Prognostic Factors in Patients with Squamous Cell Cervical Carcinoma FIGO IIIC1.

Diagnostics (Basel) 2021 Apr 16;11(4). Epub 2021 Apr 16.

University of Medical Science Poznan, 61-866 Poznan, Poland.

Purpose: This study aims to determine whether semiquantitative parameters obtained from both the primary tumor and metastatic pelvic lymph nodes (PLN) diagnosed in fluoro-18-deoxy-glucose positron emission tomography (FDG-PET-CT) are associated with disease-free survival (DFS), local control (LC), distant metastasis-free survival (DMFS) and overall survival (OS) in patients with locally advanced squamous cervical cancer (LACC) and metastatic pelvic lymph nodes.

Materials: Retrospective analysis was performed on 93 female patients with FIGO IIIC1. The median age was 53 years (27-75). Read More

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Adjuvant EGFR-TKIs for Patients With Resected EGFR-Mutant Non-Small Cell Lung Cancer: A Meta-Analysis of 1,283 Patients.

Front Oncol 2021 12;11:629394. Epub 2021 Apr 12.

Integrative Cancer Centre, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.

Background: Cisplatin-based chemotherapy was previously considered as the standard adjuvant therapy for improved overall survival (OS) in patients with non-small cell lung cancer (NSCLC) after surgery. However, the benefit was limited due to high risks of recurrence and adverse events. In the present study, the efficacy of adjuvant epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) for EGFR-mutant patients after surgery was investigated using the latest updated data. Read More

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Long term outcomes of patients with poor prognostic factors following Transanal endoscopic microsurgery for early rectal cancer.

Colorectal Dis 2021 Apr 26. Epub 2021 Apr 26.

Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK.

Introduction: Management of early rectal cancer following transanal microscopic anal surgery (TEMS) poses a management dilemma when the histopathology reveals poor prognostic features, due to high risk of local recurrence (LR). The aim of this study is to evaluate the oncological outcomes of such patients who either undergo surgery with total mesorectal excision (TME), receive adjuvant chemo/radiotherapy (CRDT/RT) or close surveillance only (no further treatment).

Methods: We identified patients with poor prognostic factors; pT2 adenocarcinoma, poor differentiation, deep submucosal invasion (kikuchi - SM3), lymphovascular invasion, tumour budding or R1 resection margin between 01. Read More

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Oncological outcome of wide anatomic resection with partial mesorectal excision in patients with upper and middle rectal cancer.

Colorectal Dis 2021 Apr 26. Epub 2021 Apr 26.

Section of Colon and Rectal Surgery, Department of Surgery, Hospital del Mar, Barcelona.

Aim: The aim was to investigate the influence of distal resection margin and extent of mesorectal excision on long-term oncological outcomes.

Design: Consecutive patients with upper and middle third rectal cancer from June 2006 to February 2016 were reviewed. Patients were divided into four groups depending on the distal margin considered as a surrogate marker of the extension of mesorectal excision (Q1: ≤ 10mm, Q2: 11-20mm, Q3: 21-30mm, Q4: ≥ 31mm). Read More

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Adjuvant vaginal interventional radiotherapy in early-stage non-endometrioid carcinoma of corpus uteri: a systematic review.

J Contemp Brachytherapy 2021 Apr 14;13(2):231-243. Epub 2021 Apr 14.

Department of Medicine and Surgery and Translational Medicine, Radiotherapy Oncology, Sant' Andrea Hospital, "Sapienza" University, Rome, Italy.

Purpose: This systematic review focused on rare histological types of corpus uteri malignancy, including uterine carcinosarcoma (UCS), uterine clear cell carcinoma (UCCC), and uterine papillary serous carcinoma (UPSC), and it is proposed to assist with clinical decision-making. Adjuvant treatment decisions must be made based on available evidences. We mainly investigated the role of vaginal interventional radiotherapy (VIRt) in UCS, UCCC, and UPSC managements. Read More

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Computational approaches to dissociative chemisorption on metals: towards chemical accuracy.

Authors:
Geert-Jan Kroes

Phys Chem Chem Phys 2021 Apr 9;23(15):8962-9048. Epub 2021 Apr 9.

Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands.

We review the state-of-the-art in the theory of dissociative chemisorption (DC) of small gas phase molecules on metal surfaces, which is important to modeling heterogeneous catalysis for practical reasons, and for achieving an understanding of the wealth of experimental information that exists for this topic, for fundamental reasons. We first give a quick overview of the experimental state of the field. Turning to the theory, we address the challenge that barrier heights (E, which are not observables) for DC on metals cannot yet be calculated with chemical accuracy, although embedded correlated wave function theory and diffusion Monte-Carlo are moving in this direction. Read More

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[Prognosis and complications of local excision for rectal cancer after neoadjuvant chemoradiotherapy].

Zhonghua Wei Chang Wai Ke Za Zhi 2021 Apr;24(4):344-351

Department of General Surgery, Peking Union Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.

To investigate the prognosis and postoperative complications of local excision for rectal cancer after neoadjuvant chemoradiotherapy (nCRT). A descriptive case series study was carried out. Patient inclusion criteria: (1) patients who underwent local excision by transanal endoscopic microsurgery (TEM) after nCRT; (2) magnetic resonance evaluated tumor regression grade (mrTRG) as 1, 2 after nCRT;(3) American Society of Anesthesiologists class I to III. Read More

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Prognostic factor identification by screening changes in differentially expressed genes in oral squamous cell carcinoma.

Oral Dis 2021 Apr 19. Epub 2021 Apr 19.

Department of Oral and Maxillofacial Surgery, University Medical Center Goettingen, Goettingen, Germany.

Objective: This study was designed to identify changes in the expression of proteins occurring during the progression of oral squamous cell carcinoma (OSCC) and to validate their impact on patient prognosis.

Materials And Methods: The human OSCC cell line UPCI-SCC-040 was treated in vitro with TGF-β1, and transcriptome analysis of differentially expressed genes (DEGs) revealed putative candidates relative to untreated cells. The respective protein expression levels of the most important genes were immunohistochemically validated on a tissue microarray (TMA) containing tissue samples from 39 patients with OSCC and were correlated with disease-free survival (DFS) as the primary clinical endpoint. Read More

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Identification of Patients With Locally Advanced Gastric Cancer Who May Benefit From Adjuvant Chemoradiotherapy After D2 dissection: A Propensity Score Matching Analysis.

Front Oncol 2021 1;11:648978. Epub 2021 Apr 1.

Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.

Background: One of the most controversial areas in gastrointestinal oncology is the benefit of postoperative chemoradiotherapy (CRT) over chemotherapy (CT) alone after D2 dissection of locally advanced gastric cancer (LAGC). We aimed to identify the LAGC patients who may benefit from adjuvant CRT.

Methods: We analyzed retrospectively 188 patients receiving radical gastrectomy with D2 dissection for LAGC in our hospital. Read More

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The Prognostic Effects of Clinicopathological Features on Rectal Cancer Patients undergoing Neoadjuvant Chemoradiotherapy.

J Coll Physicians Surg Pak 2021 Apr;30(4):422-428

Department of General Surgery, Kayseri City Hospital, Kayseri, Turkey.

Objective: To investigate the effects of clinicopathological features on disease-free survival (DFS) and overall survival (OS) in in-patients with local advanced rectal cancer (LARC) who received neoadjuvant chemoradiotherapy (nCRT).

Study Design: Observational study.

Place And Duration Of Study: Clinic of Radiation Oncology, Kayseri Training and Research Hospital and Kayseri City Hospital, Turkey, between January 2014 and June 2019. Read More

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Low-dose preoperative radiation, resection, and reduced-field postoperative radiation for soft tissue sarcomas.

J Surg Oncol 2021 Apr 18. Epub 2021 Apr 18.

Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA.

Background And Objectives: Radiotherapy (RT) enables conservative surgery for soft tissue sarcoma (STS). RT can be delivered either pre-operatively (PreRT) or postoperatively (PORT), yet in some patients, neither approach is fully satisfactory (e.g. Read More

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Radiomics for prediction of radiation-induced lung injury and oncologic outcome after robotic stereotactic body radiotherapy of lung cancer: results from two independent institutions.

Radiat Oncol 2021 Apr 16;16(1):74. Epub 2021 Apr 16.

Department of Stereotactic and Functional Neurosurgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany.

Objectives: To generate and validate state-of-the-art radiomics models for prediction of radiation-induced lung injury and oncologic outcome in non-small cell lung cancer (NSCLC) patients treated with robotic stereotactic body radiation therapy (SBRT).

Methods: Radiomics models were generated from the planning CT images of 110 patients with primary, inoperable stage I/IIa NSCLC who were treated with robotic SBRT using a risk-adapted fractionation scheme at the University Hospital Cologne (training cohort). In total, 199 uncorrelated radiomic features fulfilling the standards of the Image Biomarker Standardization Initiative (IBSI) were extracted from the outlined gross tumor volume (GTV). Read More

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Thoracic Duct Resection Has a Favorable Impact on Prognosis by Preventing Hematogenous Spread of Esophageal Cancer Cells: A Multi-institutional Analysis of 2269 Patients.

Ann Surg Oncol 2021 Apr 16. Epub 2021 Apr 16.

Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita City, Osaka, Japan.

Background: The impact of thoracic duct (TD) resection on prognosis is controversial. This study aimed to examine the impact of TD resection.

Methods: In this six-institution, matched-cohort study, 2269 consecutive patients with esophageal squamous cell carcinoma who underwent esophagectomy between 2000 and 2017 were enrolled for analysis of long-term outcomes, including overall survival (OS), disease-free survival (DFS), cause-specific survival (CSS), and recurrence patterns. Read More

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Disease-free Survival of Patients with Differentiated Thyroid Cancer: A Study from a Tertiary Center in Oman.

Oman Med J 2021 Mar 31;36(2):e246. Epub 2021 Mar 31.

Division of Endocrinology, Royal Hospital, Muscat, Oman.

Objectives: As with global trends, the prevalence of differentiated thyroid cancer (DTC) has increased in recent years in Oman. However, to the best of our knowledge, no local studies have yet been published evaluating the prognosis of DTC cases in Oman. This study aimed to assess disease-free survival (DFS) and prognostic factors related to DTC among Omani patients attending a tertiary care center. Read More

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Comprehensive study of neoadjuvant targeted therapy for resectable non-small cell lung cancer.

Ann Transl Med 2021 Mar;9(6):493

Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China.

Background: Approximately 30-70% percent of patients with non-small cell lung cancer (NSCLC) still relapse after receiving complete resection and even suffer distant metastasis. Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) have gradually replaced chemotherapy to become the first-line postoperative NSCLC treatment because they can effectively inhibit the postoperative recurrence of lung cancer. However, the clinical efficacy of neoadjuvant EGFR-TKIs in mutant NSCLC patients is still unclear. Read More

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Comparison of laser microsurgery and open partial laryngectomy for T1-2 laryngeal cancer treatment.

Ann Transl Med 2021 Mar;9(6):464

Department of Otolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.

Background: This study aims to investigate the clinical efficacy of transoral laser microsurgery and open partial laryngectomy (OPL) in treating T1-2 laryngeal cancer.

Methods: A retrospective analysis was conducted of 182 patients with T1-2 cancer with anterior vocal commissure (AVC) involvement. The local control (LC), disease-free survival (DFS) and overall survival (OS) rates at 5-year follow-up and the influencing factors were analyzed. Read More

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IOERT versus external beam electrons for boost radiotherapy in stage I/II breast cancer: 10-year results of a phase III randomized study.

Breast Cancer Res 2021 Apr 13;23(1):46. Epub 2021 Apr 13.

Department of Radiotherapy and Radio-Oncology, Paracelsus Medical University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria.

Background: Intraoperative radiotherapy with electrons (IOERT) boost could be not inferior to external beam radiotherapy (EBRT) boost in terms of local control and tissue tolerance. The aim of the study is to present the long-term follow-up results on local control, esthetic evaluation, and toxicity of a prospective study on early-stage breast cancer patients treated with breast-conserving surgery with an IOERT boost of 10 Gy (experimental group) versus 5 × 2 Gy EBRT boost (standard arm). Both arms received whole-breast irradiation (WBI) with 50 Gy (2 Gy single dose). Read More

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Assessment of the expression and response of PD-1, LAG-3, and TIM-3 after neoadjuvant radiotherapy in rectal cancer.

Neoplasma 2021 Apr 13. Epub 2021 Apr 13.

Department of Radiation Oncology, Xiamen Humanity Hospital, Xiamen, China.

Many studies have verified the safety of combined radiotherapy and immune checkpoint blockades (ICBs) without the specific radiation dose or sequencing of combination. We aimed to evaluate the expression and response of PD-1, TIM-3, LAG-3 after neoadjuvant radiotherapy (NRT) and explore the possibility and optimal schedule of combining immunotherapy with radiotherapy in treating rectal cancer. Immunohistochemistry was performed to detect the expression of PD-1, TIM-3, LAG-3, CD8, and CD3. Read More

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Elective node dissection versus observation for management of patients with early-stage cT1/T2N0 tongue carcinoma: A systematic review and meta-analysis of prospective studies.

Clin Otolaryngol 2021 Apr 11. Epub 2021 Apr 11.

Department of Otolaryngology-Head & Neck Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia.

Objective: To carry out a meta-analysis of prospective literature comparing the clinical efficacy of elective neck dissection (END) vs observation (OBS) in patients with early-stage cT1/T2N0 tongue carcinoma.

Design/setting/participants/outcome Measures: We systematically reviewed four databases from inception to 30-October-2020. We considered all studies meeting the following PICOS conditions: (a) Patients: early-stage cT1/T2N0 tongue carcinoma, (b) Intervention: END, (c) Comparator: OBS, (d) Outcomes: local tongue recurrence, cervical nodal recurrence, disease-specific survival (DSS) rate, and disease-free survival (DFS) rate and (e) Study design: prospective reports. Read More

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Prognostic value of systemic ımmune ınflammation ındex in patients with laryngeal cancer.

Eur Arch Otorhinolaryngol 2021 Apr 9. Epub 2021 Apr 9.

Department of Radiation Oncology, Medical Faculty of Cumhuriyet University, Sivas, Turkey.

Purpose: This study aimed to investigate the relationship between the neutrophil-to-lymphocyte ratio (NLR), the platelet-to-lymphocyte ratio (PLR), and the systemic immune-inflammation index (SII) with the clinical and pathological parameters of 118 laryngeal cancer patients, as well as their effects on the survival of the disease.

Methods: For the calculation of SII, PLR, and NLR, hemogram tests were conducted before treatment. Receiver-operating characteristic (ROC) analysis was used to calculate the cut-off value of SII, NLR, and PLR for overall survival (OS) and disease-free survival (DFS). Read More

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Association between programmed cell death ligand 1 expression and thyroid cancer: A meta-analysis.

Medicine (Baltimore) 2021 Apr;100(14):e25315

Department of Nuclear Medicine.

Background: Programmed cell death ligand 1 (PD-L1), which is highly expressed in a variety of malignant tumors, is closely related to clinicopathological features and prognosis. However, there are few studies on the potential effects of PD-L1 on thyroid carcinoma, the incidence of which has shown an upward trend worldwide. This study aimed to explore the association between PD-L1 expression and clinicopathological features and prognosis of thyroid cancer. Read More

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APBI versus ultra APBI in the elderly with low-risk breast cancer: a comparative analysis of oncological outcome and late toxicity.

Int J Radiat Oncol Biol Phys 2021 Apr 5. Epub 2021 Apr 5.

Department of Radiation Oncology, Antoine Lacassagne Cancer Center & University of Cote d'Azur, Nice, FRANCE.

Aim: Accelerated partial breast irradiation (APBI) represents a validated technique for low-risk breast cancer. Recently, ultra APBI (uAPBI) using fewer than 5 fractions were described in literature. We compared clinical outcome and late toxicity after APBI or uAPBI in the elderly. Read More

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