Medical Specialties Commons^™

Does Concomitant Cabg Influence The Outcomes Of Post-Myocardial Infarction Ventricular Septal Defect Repair?, Dylan P. Horan, Jae Hwan Choi, Matthew P. Weber, Elizabeth Maynes, Sinal Patel, Jothika Challapalli, Jessica G.Y. Luc, John W. Entwistle, H. Todd Massey, Rohinton J. Morris, Vakhtang Tchantchaleishvili

Phase 1

Introduction: Ventricular septal defect (VSD) following myocardial infarction (MI) is a relatively infrequent complication with high mortality. Over time, understanding of the pathology and its management has resulted in improved outcomes; however, controversies remain.

Objective: We sought to investigate the effect of concomitant coronary artery bypass graft (CABG) on outcomes following post-MI VSD repair.

Methods: Electronic search was performed to identify all relevant studies published from 2000 to 2018. After assessment for inclusion and exclusion criteria, 66 studies were selected for the analysis. Data were extracted and pooled for systematic review and meta-analysis.

Results: Average age was 68.7 years …

Repeat Neuro-Imaging In Patients Presenting With Traumatic Extra-Axial Intracranial Hemorrhage, Austin Saline, Anthony Stefanelli, Md, Omaditya Khanna, Md, Sol Feuerwerker, Somnath Das, Evan Selzer

Phase 1

Introduction: The management of extra-axial intracranial hemorrhage patients is complicated and lacks a systemic algorithm to determine the timing and necessity of head computed tomography (HCT). However, repeat HCTs weakly predict the need for an intervention after mild traumatic brain injury (TBI).

Objective: This study focused on assessing the safety, efficacy, and necessity of obtaining serial HCTs in patients presenting with subdural hemorrhages.

Methods: A retrospective chart review was conducted of patients with subdural hemorrhages and a GCS between 13-15 on admission (n=116). The total number of HCTs, time between repeat HCTs, duration of hospital stay, and factors necessitating surgery …

Is Excision Of Radial Scars Identified On Cnb Necessary?, K. Nimtz, K. Hookim, Md, A. Sevrukov, Md, T. Tsangaris, Md, A. Willis, Md, A. Berger, Md, M. Lazar, Md

Phase 1

Introduction: Quantifying the risk of upgrade to malignancy with radial scars has been an ongoing challenge, as the published upgrade rate varies widely from 0-40%, making management strategy controversial. The lack of consensus on optimal management highlights the need for further analysis. We sought to identify our institutional upgrade rate of radial scar identified on core needle biopsy (CNB).

Methods: A retrospective review of pathology and radiology databases was performed to identify radial scars found on CNB. We excluded patients with malignancy associated with radial scar and those who did not undergo surgical excision. The upgrade rates to …

17-Hydroxyprogesterone Caproate Does Not Prevent Preterm Birth In Women With A Twin Pregnancy And A Prior Singleton Spontaneous Preterm Birth, Breanna Valcarcel, Bs, Andrew Ward, Md, Huda Al-Kouatly, Md, Vincenzo Berghella, Md, Victoria Greenberg, Md

Phase 1

INTRODUCTION: Prior spontaneous preterm birth (sPTB) is a risk factor for recurrent sPTB. Weekly 17-hydroxyprogesterone caproate (17P) is used to prevent sPTB in singletons, but there is insufficient evidence on its benefit in twin pregnancies.

OBJECTIVE: We hypothesized that 17P weekly injections would reduce the likelihood of sPTB in women carrying a twin pregnancy with a history of singleton sPTB.

METHODS: We performed a retrospective case control study of women with a twin gestation and prior singleton sPTB between 2005 and 2016. The study group consisted of women with a twin gestation that received weekly 17P starting at 16 to …

Sensory Outcomes In Digital Nerve Repair Techniques: An Updated Meta-Analysis And Systematic Review, Zachary J. Herman, Bs, Asif M. Ilyas, Md

Phase 1

Introduction: Injuries to the digital nerves are common with trauma to the hand; surgery is often required to repair injured nerves. Surgical management of digital nerve injuries includes neurorrhaphy or use of allograft, autografts, and conduits.

Objective: In light of the increasing availability and utilization of digital nerve repair constructs, an updated meta-analysis was undertaken in order to comparatively review the available evidence to determine differences in outcomes.

Methods: We reviewed the most current literature on sensory outcomes of various digital nerve repair techniques using static two-point discrimination (S2PD), moving two-point discrimination (M2PD), Semmes Weinstein–Monofilament testing (SWMF) and complication rates …

Efficacy Of Combination Of Immunotherapies In A Murine In A Murine Squamous Cell Carcinoma Model, E. Correia, C. Portocarrero, U. Rodeck

Phase 1

Introduction: Head and neck squamous cell carcinomas (HNSCCs) are a type of neoplasm found in the epithelium of the oral cavity, oropharynx, nasopharynx, larynx, or hypopharynx. Recent evidence has demonstrated that 70-90% of HNSCC are associated with Human Papillomavirus (HPV), particularly strain 16 producing oncogenic proteins E6/E7. Currently, HNSCCs are treated with surgery, chemotherapy, and radiation, however immunotherapy with immune checkpoint (PD-1) blocking agents promises to improve outcomes in HNSCC.

Objective: This study examined the therapeutic effects of dual and triple combination immunotherapies in a mouse model of HPV-associated HNSCC.

Methods: Treatment modalities included a tumor vaccine (attenuated Listeria monocytogenes …

Pilot Study For Using Fitbit Activity Trackers To Monitor And Predict Onset Of Car-T Cell Immunotherapy Related Adverse Events Including Cytokine Release Syndrome, Cassra Clark, Ms, Bs, Adam Dicker, Md, Phd, Fastro, Margaret Kasner, Md, Msce, Gina Keiffer, Md, Neil Palmisiano, Md, Ms, Pierluigi Porcu, Md, Kaitlin Rancani, Crnp, Vincent Yeung, Md, Lindsay Wilde, Md

Phase 1

Introduction: Immunotherapy using T Cells with engineered chimeric antigen receptors (CAR) is a revolutionary modality for treating cancer, especially B cell malignancies. It also has specific toxicities. The most common toxicities observed are cytokine-release syndrome (CRS) and neurotoxicity. These therapy-related adverse events can range from mild to fatal. If appropriately and timely treated, they have a good prognosis. Thus, further insight into predictive biomarkers can help clinical management of patients and reduce morbidity and mortality.

Objective: One of the constitutional symptoms associated with CRS is fatigue. With the advent of activity tracking digital technology, I propose a pilot study exploring …

Post-Operative Outcomes Of Surgical Treatment For Trigeminal Neuralgia, Daniel Tzou

Phase 1

Introduction: Trigeminal Neuralgia causes severe paroxysmal facial pain that leads to debilitating quality of life. Pharmacologic management often becomes insufficient, and the microvascular decompression (MVD) procedure is the mainstay surgical intervention. Internal neurolysis (IN) is a novel addition to the MVD procedure to treat trigeminal neuralgia, and its efficacy has not been well tested.

Objective: The objectives of the study are to understand appropriate surgical treatments for trigeminal neuralgia and to determine the efficacy of the additional IN compared to MVD.

Methods: A retrospective cohort study on patients undergoing surgical intervention for trigeminal neuralgia at TJUH was conducted. Surgical treatment …

Outcomes Of Out Of Hospital Ecmo Transfer: Significance Of Initiation Site And Personnel On Survival And Complication Rates, Toru Mihama, Ba, Spencer Liem, Bs, Nicholas C. Cavarocchi, Md, Hitoshi Hirose, Md, Phd

Department of Surgery Posters

Objectives

To investigate the outcomes of ECMO transfer from non-ECMO center to ECMO center

Determine the impact of cannulation site and personnel on ECMO survival and complication rate

Improving Door-To-Groin Time For Stroke-Alert Patients Arriving At Tjuh, Megan Carney, Mackenzie O'Connor, Robin Dharia, Md

Phase 1

Introduction: Due to the large number of endovascular-eligible acute ischemic stroke patients, the urgent nature of effective stroke treatment protocols has become increasingly recognized at TJUH. Due to the hospital’s unique situation with two city blocks between the ER and endovascular lab, in-hospital factors remain a significant reason for the delay of treatment.

Objective: The purpose was to conduct a quality-assurance trial to determine whether standardizing imaging modalities for inpatient and ER stroke-alert patients at our institution would improve door-to-puncture times.

Methods: After implementation of the new stroke alert protocol, data were prospectively collected for six months for two groups …

Identifying The Causes Of Cancer Readmissions: A Patient Centered Approach, Emily Wei, Katie Holland, Allison Zibelli, Md

Phase 1

Introduction: Readmission rates of cancer patients remain high, while the rates of many other conditions are decreasing in the United States. Cancer patients are a plurality of patients readmitted to hospitals within 30 days of discharge, and have a high rate of avoidable readmission. Therefore, it is important to understand why these readmissions happen in order to prevent their occurrence.

Objective: This study hopes to identify specific, and potentially personal, reasons that bring cancer patients back to the hospital. Patient perspective may reveal trends that are not apparent in medical record chart reviews. This information can present an opportunity to …

Factors Associated With Stage At Presentation Among Patients With Rare Pancreatic Tumors: An Exploratory Analysis Of The Seer Database, J. Subramoney, D. Delgado, V. Nguyen, R. Denneny, B. George, E. Mitchell, Md

Phase 1

Introduction: Rare pancreatic carcinomas (PC) account for roughly 15% of all pancreatic cancers and approximately 8,300 new cases within the US annually. Little research compares initial stage at diagnosis among rare vs. common pancreatic tumors. The aim of this study was to examine associations between tumor histology and initial stage at diagnosis among cases of rare pancreatic cancers.

Methods: Retrospective cohort study, using the NCI’s Surveillance, Epidemiology, and End Results (SEER) 1990-2015 database. We included patients diagnosed with pancreatic cancer aged 18+. Histology was classified into four categories (ductal, carcinoid, mucinous adenocarcinoma, and undetermined) and stage was dichotomized …

Selection Criteria For Posterior Circulation Stroke And Functional Outcome Following Mechanical Thrombectomy, Vivian Xu, Ahmad Sweid, Md, Stavropoula Tjoumakaris, Md, Kavya Shivashankar, Ba, Karim Hafazalla, Bs, Michael R. Gooch, Md, Nabeel Herial, Md, Robert H. Rosenwasswer Md, Pascal Jabbour, Md

Phase 1

Objective: 20% of all acute ischemic strokes (AIS) are caused by posterior circulation strokes, which carry an intensified mortality touching 95%. Early recanalization improves outcome as shown by several reports; however, safety, patient selection, and prognostic factors remain lacking. An investigation of the safety and prognostic factors for posterior circulation mechanical thrombectomy (MT) was performed.

Methods: A retrospective review of patients presenting with posterior circulation AIS, who underwent MT between 2010 and 2018.

Results: Of 443 patients who underwent MT for AIS, 83 patients had posterior circulation strokes. 95% of procedures were conducted under general anesthesia. The median NIHSS upon …

Management Of Retinoblastoma In Older Children (>5 Years) Using Intra-Arterial Chemotherapy: Comparison Of Outcomes To Pre-Chemotherapy And Intravenous Chemotherapy Eras, Evan Selzer, Ms, R. Joel Welch, Md, Pascal Jabbour, Md, Ann Leahey, Md, Carol L. Shields, Md

Phase 1

Introduction: Intra-arterial chemotherapy (IAC) has emerged as an effective treatment for retinoblastoma (RB), but little information exists regarding its use in older patients (>5 years). We evaluate the use of IAC (2008-2018) for RB in older patients and compare outcomes to those in the pre-chemotherapy (<1994) and intravenous chemotherapy (IVC) (1994-2007) eras.

Objective: To evaluate the hypothesis that IAC is effective in managing RB in older patients.

Methods: We performed a retrospective analysis of all patients older than 5 years who were treated with IAC for RB from 2008-2018 on the Ocular Oncology Service at the Wills Eye Hospital. Comparisons were made to historic, …

Association Of Cyp2c19*17 Allele And Choice Of P2y12 Inhibitor On Cardiovascular Outcomes Following Percutaneous Coronary Intervention, Yash Varma, Bs, Craig R. Lee, Phd, Pharmd, Joseph S. Rossi, Md, George A. Stouffer, Md

Phase 1

Introduction: The CYP2C19*17 allele variant is a gain-of-function polymorphism which increases levels of the active metabolite of clopidogrel.

Objective: *17 is associated with increased bleeding risk during clopidogrel therapy, but it is unclear whether alternative P2Y12 inhibitors, prasugrel and ticagrelor, produce better clinical outcomes in patients undergoing percutaneous coronary intervention (PCI).

Methods: A single-center observational study was conducted in 928 PCI patients who received CYP2C19 testing and dual anti-platelet therapy (DAPT). Risk of major adverse cardiovascular or cerebrovascular events (MACCE) and clinically significant bleeding over 12 months were compared across genotype and DAPT groups by proportional hazards regression.

Results: 584 …

The Accuracy Of Blood Pressure Measurement By A Smartwatch And A Portable Health Device, Vignesh Murali, Noud Van Helmond, Cecilia G. Freeman, Christina Hahnen, Nilanjan Haldar, Jacquelyn N. Hamati, Dylan M. Bard, Geno J. Merli, Jeffrey I. Joseph

Phase 1

Introduction: Hypertension is a leading cause of mortality. Proper blood pressure (BP) control can be achieved by lifestyle modification, pharmacotherapy, and frequent measurements. With the growing popularity of cuffless blood pressure monitors, it is important to independently validate their accuracy.

Objective: We evaluated two cuffless blood pressure monitors, The Everlast TR10 fitness watch and the BodiMetrics Performance Monitor, for their accuracy and precision in BP measurements.

Methods: Using a protocol derived from the ANSI/AAMI/ISO 2013 standard for evaluating automated sphygmomanometers, we measured the blood pressures of 85 patients recruited from the Thomas Jefferson University Hospital Preadmission Testing Center with two …

Stage Of Disease And Likelihood Of Surgical Intervention In Colon Cancer Patients: An Exploratory Analysis Of The Seer Database, R. Denneny, D. Delgado, V. Nguyen, J. Subramoney, B. George, E. Mitchell, Md

Phase 1

Introduction/Objectives: Colorectal cancer (CRC) remains as the third-leading cause of cancer-related deaths amongst both men and women in the United States. However, the mortality rate from CRC continues to drop, which has been attributed to increased surgical polyp removal. This study explored the association between disease stage and the likelihood of surgical intervention as primary treatment for the disease.

Methods: Retrospective cohort study analysis using de-identified patient data from the NCI’s Surveillance, Epidemiology, and End Results (SEER) database from 1998-2015. Inclusion criteria included patients with colon cancer, over 18 years of age, with known disease in either the proximal or …

Adaptive Statistical Iterative Reconstruction-V For Lung Nodule Analysis, Cherry Au, Zhenteng Li, Md, Eric Gingold, Md, Ethan Halpern, Md, Baskaran Sundaram, Md

Phase 1

Introduction: Low-dose CT in lung cancer screening has demonstrated benefits in select patients. As the traditional filtered back projection (FBP) technique is limited by poor image quality, adaptive statistical iterative reconstruction-V (ASIR-V) algorithm has been developed to achieve higher image quality with processing efficiency.

Objective: To investigate the impact of various CT scan parameters on the semi-automated measurement of lung nodules using a Computer Aided Detection (CAD) program.

Methods: This IRB-exempt phantom experiment was conducted with a CT scanner capable of ASIR-V algorithm. Eight lung nodules sized 5-12 mm, of solid or ground glass type, were placed inside a multipurpose …

Diagnostic Accuracy Of Home Sleep Apnea Testing (Hsat) Based On Recording Duration, Angela Alnemri, Theodora Fynn, Prakash Vasudevan, Ritu Grewa, Karl Doghramji

Phase 1

Introduction: Obstructive Sleep Apnea (OSA) is a chronic sleeping disorder with serious health consequences. Currently, standard diagnosis is through in-lab polysomnography; however, there has been a shift to greater use of Home Sleep Apnea Testing (HSAT) for patients with a high pre-test probability of having OSA.

Objective: To investigate the minimum recording time needed during HSAT to accurately diagnose the presence and severity of OSA.

Methods: A retrospective review was conducted of HSATs done from January-October 2017. Each study was divided into 1-, 2-,3-,4-,5-, 6-, and 7 hour intervals beginning at the recording start time. The respiratory event index (REI) …

Network Influence Of The Cerebellum For Predicting Dbs Response In Patients With Advanced Parkinson’S Disease, Lucy Li, Jennifer Muller, Sara Thalheimer, Mackenzie D. Silverman, Mahdi Alizadeh, Tsao-Wei Liang, Kelly Layton, Daniel Kremens, Victor Romo, Feroze Mohamed, Chengyuan Wu

Phase 1

Introduction: Deep brain stimulation (DBS) is a treatment option for reducing motor symptoms in patients with Parkinson’s Disease (PD) when first-line medication becomes ineffective. Existing literature has hypothesized that the clinical outcome of DBS may depend on brain connectivity profiles of the stimulation site to distant brain regions. However, the potential of brain connectivity profiles to predict response to DBS in PD remains unclear.

Objective: This study aimed to investigate how changes in structural and functional connectivity may relate to patient response to DBS, through the examination of brain network changes using graph theory.

Methods: Ten patients with advanced PD …

Identifying Refractory Aml Patients Using Rate Of Wbc Decline In Order To Reduce Length Of Stay, Kyle Itri, Thomas Klumpp

Phase 1

Introduction: Acute Myeloid Leukemia (AML) is the most common acute leukemia in the United States. At diagnosis, these patients are admitted to begin induction chemotherapy and remain in the hospital throughout treatment. Response to therapy is assessed with bone marrow biopsy one month later. However, rate of white blood cell (WBC) and absolute blast count (ABC) decline can be useful in predicting bone marrow blast clearance and complete remission.

Objective: Therefore, our goal is to identify AML patients refractory to induction therapy using rate of WBC, ABC, and ANC decline as prognostic markers in order to reduce length of stay. …

Acute Pancreatitis In The Emergency Department, Gregory J. Lopez, Bs, Matt Hall, Md, Matthew Babineau, Md, Darshan Kothari, Md, Ryan C. Burke, Phd, Mph, Richard E. Wolfe, Md, Sunil G. Sheth, Md, Stephen Freedman, Md, Nathan I. Shapiro, Md, Carrie Tibbles, Md

Phase 1

Introduction: Acute pancreatitis (AP) is a common emergency department (ED) presentation with a variety of outcomes. Stratifying AP severity with scoring systems can allow physicians to effectively manage patient disposition.

Objective: To identify ED pancreatitis patients who will likely be admitted to the ICU or be discharged within 48 hours, and to validate existing pancreatitis severity scores.

Methods: Patients with a final ED diagnosis of AP and/or lipase ≥ 3 times the upper limit of normal were enrolled in a prospective, observational chart review study. Parametric and non-parametric descriptive statistics were used to describe the patient population. Area under receiver …

Racial Disparities In Head And Neck Cancers In An Urban Hospital, Jessica Kraus-Lavy, Charnita Zeigler-Johnson, Scott W Keith, Frances Guiles, David Cognetti, Voichita Bar-Ad, Rita S. Axelrod, Md

Phase 1

Introduction: Head and neck cancer incidence rates are higher for white residents in Philadelphia, while related mortality rates are highest for black residents. It is unclear how risk factors like HPV and smoking contribute to these disparities. The goal of this study is to determine which factors are associated with head and neck cancers in a diverse patient population from a Philadelphia hospital.

Methods: Cancer registry data from Thomas Jefferson University was used to obtain records from 922 head and neck cancer patients. One patient of other race was excluded. Twenty in-situ cancer cases were excluded. Chi-square tests were used …

Retrospective Chart Review Assessing Factors That Contribute To Network Leakage In Postoperative Pancreatic Cancer Patients, Nazanin Sarpoulaki, Christian Fernandez, Md, Mark Hurwitz, Md

Phase 1

Introduction: Standard of care for resectable pancreatic cancer includes surgery, chemotherapy, with consideration of radiotherapy. Thomas Jefferson University Hospital (TJUH) is a large volume institution for pancreatectomy. Rate of subsequent in-network adjuvant treatment are far less which may impact outcomes. We will elucidate variables that influence coordinated patient care.

Objective: To evaluate variables that correlate with follow up and adjuvant treatment of pancreatic cancer patients at TJUH.

Methods: Retrospective medical chart reviews will be performed with data from patients with pancreatic cancer who have undergone resection at TJUH from April 2017 to March 2018. Patient demographics, clinical, and pathologic information …

High Density Of Tumor-Associated Macrophage Staining Correlates With Poor Clinicopathologic Markers In Head And Neck Squamous Cell Carcinoma: A Meta-Analysis, Alexander Knops, Ba, Ayan Kumar, Bs, Brian Swendseid, Md, Ubaldo E. Martinez-Outshoorn, Md, Larry Harshyne, Phd, Nancy Philp, Phd, Ulrich Rodeck, Md, Phd, Christopher Snyder, Adam Luginbuhl, Md, David Cognetti, Md, Jennifer Johnson, Md, Joseph Curry, Md

Phase 1

Background: Head and neck squamous cell carcinoma (HNSCC) develops within a complex cellular microenvironment that promotes tumor growth, but also represents many potential therapeutic targets. Macrophage presence within that environment has been implicated in the growth, aggression, and persistence of HNSCC. Current literature reports variable degrees of association between tumor-associated macrophage (TAMs) density and clinicopathologic markers of disease.Inconsistent findings may result from grouping of TAM subtypes, which include both M1 (pro-inflammatory) and M2 (immunosuppressive). Our aim is to define the prognostic significance of the phenotypes of tumor-associated macrophages in HNSCC.

Methods: We conducted a meta-analysis of the existing publications investigating …

Sociodemographic Background Characteristics Of Patients Who Participate In A Lung Cancer Screening Program, Amber Zhang, Marcella Pimpinelli, Brooke Ruane, Russell K. Mcintire, Julie Barta, Md, Hee-Soon Juon, Bridget Jackson

Phase 1

Introduction: Despite decreasing lung cancer incidence and mortality rates, disparities in prevalence and outcomes persist between Black and White patients. Secondary analysis of the National Lung Screening Trial found screening with low-dose CT (LDCT) reduced lung cancer mortality more in Blacks than Whites. However, it is unknown if racial disparities exist in screening results, and the involved sociodemographic factors.

Objective: The study aims to analyze characteristics that may predict screening outcomes (Lung-RADS category) in patients who received LDCT through the Jefferson Lung Cancer Screening Program (LCSP).

Methods: Retrospective data (n=733, May 2015 to July 2017) were merged with prospective …

Clinical And Pathologic Factors In Breast Cancer Patients With Bone Metastases Undergoing Surgery For Pathologic And Impending Fractures, Emily Bochner, Kerith Wang, Benjamin Leiby, Ayako Miura, William Kevin Kelly

Phase 1

Introduction: Metastatic lesions to bone carry a poor prognosis. Bone lesions can be responsible for significant morbidity in patients, including pathologic or impending fractures that may require emergent surgical evaluation.

Objective: We evaluated the clinical and pathologic features associated with breast cancer patients with bone metastases who underwent surgery for pathologic or impending fractures.

Methods: A retrospective chart review of 20 breast cancer patients with bone metastases who underwent surgery from the Bone Biorepository Bank at Sidney Kimmel Cancer Center was performed. We evaluated their clinical and pathologic characteristics and performed Fisher’s Exact Testing to explore potential associations.

Results: 90% …

Comparing Treatment Efficacy Of Upper Airway Stimulation To Cpap For Obstructive Sleep Apnea, Alec Furstenberg, Colin Huntley, Md, Adam Vasconcellos, Md, Ayan Kumar, Karl Doghramji, Md, Maurits Boon, Md

Phase 1

Introduction

Upper airway stimulation (UAS) is newer treatment option for the management of Obstructive Sleep Apnea (OSA) and presents an alternative to the traditional Continuous Positive Airway Pressure (CPAP). Previously published data has shown good control of disease severity utilizing UAS with high patient tolerance and compliance. We aim to compare a cohort of patients treated with UAS and CPAP and evaluate therapy usage and disease control through use of the mean disease alleviation concept.

Methods

We evaluated demographic, pre and post-treatment sleep study, and therapy utilization data of cohorts of patients with OSA treated with CPAP and UAS. We …

Cellular Milieu Imparts Distinct Pathological Α-Synuclein Strains In Α-Synucleinopathies, Ronald Gathagan, Chao Peng, Dustin Covell, Coraima Medellin, Anna Stieber, John L. Robinson, Bin Zhang, Rose M. Pitkin, Modupe F. Olufemi, Kelvin C. Luk, John Q. Trojanowski, Virginia M.Y. Lee

Phase 1

Introduction: In Lewy body diseases-including Parkinson's disease, without or with dementia, dementia with Lewy bodies, and Alzheimer's disease with Lewy body co-pathology -α-synuclein (α-Syn) aggregates in neurons as Lewy bodies and Lewy neurites. By contrast, in multiple system atrophy α-Syn accumulates mainly in oligodendrocytes as glial cytoplasmic inclusions (GCIs)

Objective: Our objective was to determine the conformational and biological profiles of a-Syn strains.

Methods: The following methods were used to collect and analyze data: Recombinant α-Syn purification and in vitro fibrillization. Preparation of sarkosyl-insoluble fractions from disease and control brains. Sandwich ELISA. Cell cultures. Stereotaxic injection of sarkosyl-insoluble fraction of …

Biphenotypic Sinonasal Sarcoma-Case Report And Review Of Clinicopathological Features And Diagnostic Modalities., Chandala Chitguppi, Ian Koszewski, Kaitlin Collura, Mark Curtis, Gurston G. Nyquist, Mindy R. Rabinowitz, Marc Rosen

Department of Otolaryngology - Head and Neck Surgery Faculty Papers

Background

Biphenotypic sinonasal sarcoma is a recently described malignancy showing dual differentiation with both myogenic and neural elements. Due to its histologic similarities to other sinonasal malignancies, it is a diagnostic challenge.

Objective

The main purpose of this article is to report a case of biphenotypic sinonasal sarcoma and to consolidate data and provide a comprehensive review regarding pathological differences between biphenotypic sarcoma and other sinonasal malignancies and diagnostic modalities used for biphenotypic sarcoma.

Material and Methods

A systematic review of all cases of biphenotypic sinonasal sarcoma was performed using electronic databases (PubMed and Medline). Data collected included age, gender, …