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Archives of Pathology & Laboratory Medicine

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https://www.readbyqxmd.com/read/28421831/a-novel-automated-slide-based-technology-for-visualization-counting-and-characterization-of-the-formed-elements-of-blood-a-proof-of-concept-study
#1
James W Winkelman, Milenko J Tanasijevic, David J Zahniser
CONTEXT: - A novel automated slide-based approach to the complete blood count and white blood cell differential count is introduced. OBJECTIVE: - To present proof of concept for an image-based approach to complete blood count, based on a new slide preparation technique. A preliminary data comparison with the current flow-based technology is shown. DESIGN: - A prototype instrument uses a proprietary method and technology to deposit a precise volume of undiluted peripheral whole blood in a monolayer onto a glass microscope slide so that every cell can be distinguished, counted, and imaged...
April 19, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28418283/serum-bilirubin-concentrations-in-patients-with-takayasu-arteritis
#2
You-Fan Peng, Yi-Bin Deng
CONTEXT: - Bilirubin has strong anti-inflammatory and antioxidative stress action. Progression of inflammation involving arteries is a crucial activator in pathogenesis of Takayasu arteritis (TA). OBJECTIVE: - To investigate the relationship between serum bilirubin and TA. DESIGN: - Our study involved 115 consecutive TA patients. Patients with active-phase disease were followed and received prednisone therapy. RESULTS: - Lower concentrations of serum bilirubin were detected in TA patients compared with healthy subjects (0...
April 18, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28418282/immunohistochemical-detection-of-hairy-cell-leukemia-in-paraffin-sections-the-role-of-pax5-and-cd103-double-staining-to-improve-specificity-and-sensitivity
#3
Igor B Rozenvald, Maurice D Richardson, Lenessa Brock, Russell L Maiese
CONTEXT: - In hematopathology practice, abnormal expression of CD103 on B cells is detected by flow cytometry in hairy cell leukemia (HCL) and, in combination with other phenotypic and morphologic findings, provides diagnostic specificity and sensitivity. Immunostaining on paraffin sections makes it possible to perform immunophenotyping in situ. However, normal bone marrow contains CD103-positive cells, which are not B cells, making it difficult to be certain about low-level involvement by HCL...
April 18, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28418281/programmed-death-ligand-1-pd-l1-expression-in-the-programmed-death-receptor-1-pd-1-pd-l1-blockade-a-key-player-against-various-cancers
#4
Jian Guan, Khin Sandar Lim, Tarek Mekhail, Chung-Che Chang
CONTEXT: - Immune checkpoint pathways, including programmed death receptor-1/programmed death ligand-1 (PD-1/PD-L1) signaling pathway, which are important in mediating self-tolerance and controlling self-damage, can sometimes be manipulated by cancer cells to evade immune surveillance. Recent clinical trials further demonstrate the efficacy of PD-1/PD-L1-targeted therapy in various cancers and reveal a new era of cancer immunotherapy. OBJECTIVE: - To review the mechanism of the PD-1/PD-L1 signaling pathway, the regulation of this pathway, PD-1/PD-L1 as a predictive and/or prognostic marker in various cancers, and strategies of measuring PD-L1 expression...
April 18, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28418280/twenty-first-century-pathologists-advocacy
#5
Timothy Craig Allen
Pathologists' advocacy plays a central role in the establishment of continuously improving patient care quality and patient safety, and in the maintenance and progress of pathology as a profession. Pathology advocacy's primary goal is the betterment of patient safety and quality medical care; however, payment is a necessary and appropriate component to both, and has a central role in advocacy. Now is the time to become involved in pathology advocacy; the Medicare Access and Children's Health Insurance Program (CHIP) Reauthorization Act of 2015 (MACRA) and the Protecting Access to Medicare Act of 2014 (PAMA) are two of the most consequential pieces of legislation impacting the pathology and laboratory industry in the last 20 years...
April 18, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28402169/delta-check-practices-and-outcomes-a-q-probes-study-involving-49-health-care-facilities-and-6541-delta-check-alerts
#6
Ron B Schifman, Michael Talbert, Rhona J Souers
CONTEXT: - Delta checks serve as a patient-based quality control tool to detect testing problems. OBJECTIVE: - To evaluate delta check practices and outcomes. DESIGN: - Q-Probes participants provided information about delta check policies and procedures. Information about investigations, problems, and corrective actions was prospectively collected for up to 100 testing episodes involving delta check alerts. RESULTS: - Among 4505 testing episodes involving 6541 delta check alerts, the median frequencies of actions taken among 49 laboratories were clinical review, 38...
April 12, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28402168/performance-evaluation-of-automated-impedance-and-optical-fluorescence-platelet-counts-compared-with-international-reference-method-in-patients-with-thalassemia
#7
Chaicharoen Tantanate, Ladawan Khowawisetsut, Kovit Pattanapanyasat
CONTEXT: - Spurious platelet counts from automated methods have been reported in patients with abnormal red blood cells. However, there is no specific study regarding performance of platelet counts by automated methods in patients with thalassemia. OBJECTIVE: - To investigate the performance of automated platelet counts, including impedance (PLT-I) and optical fluorescent (PLT-O and PLT-F) methods, and compare them with the international reference method (IRM) for platelet counting in patients with thalassemia...
April 12, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28380306/if-you-are-not-on-social-media-here-s-what-you-re-missing-dothething
#8
C Eric Freitag, Michael A Arnold, Jerad M Gardner, Christina A Arnold
No abstract text is available yet for this article.
April 5, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28362157/the-significance-of-lymphovascular-invasion-of-the-spermatic-cord-in-the-absence-of-cord-soft-tissue-invasion
#9
Brandi C McCleskey, Jonathan I Epstein, Constantine Albany, Neda Hashemi-Sadraei, Muhammad T Idrees, Julie M Jorns, David Y Lu, Andres Matoso, Soroush Rais-Bahrami, Lauren E Schwartz, Thomas M Ulbright, Jennifer Gordetsky
CONTEXT: - Testicular germ cell tumors with lymphovascular invasion (LVI) are staged pT2, and those with spermatic cord involvement are staged pT3. OBJECTIVE: - To study the clinical significance of LVI within the spermatic cord without direct involvement of the cord soft tissues. DESIGN: - A retrospective, multi-institutional review was performed on testicular GCTs with spermatic cord LVI in the absence of cord soft tissue invasion. RESULTS: - Forty-four germ cell tumors had LVI in the spermatic cord without soft tissue invasion; 37 of 44 patients (84%) had nonseminomatous germ cell tumors (NSGCT), and 7 (16%) had pure seminomas...
March 31, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28362156/development-and-validation-of-clinical-whole-exome-and-whole-genome-sequencing-for-detection-of-germline-variants-in-inherited-disease
#10
Madhuri Hegde, Avni Santani, Rong Mao, Andrea Ferreira-Gonzalez, Karen Weck, Karl Voelkerding
CONTEXT: - With the decrease in the cost of sequencing, the clinical testing paradigm has shifted from single gene to gene panel and now whole-exome and whole-genome sequencing. Clinical laboratories are rapidly implementing next-generation sequencing-based whole-exome and whole-genome sequencing. Because a large number of targets are covered by whole-exome and whole-genome sequencing, it is critical that a laboratory perform appropriate validation studies, develop a quality assurance and quality control program, and participate in proficiency testing...
March 31, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28362155/pathologists-perspectives-on-disclosing-harmful-pathology-error
#11
Suzanne M Dintzis, Emily K Clennon, Carolyn D Prouty, Lisa M Reich, Joann G Elmore, Thomas H Gallagher
CONTEXT: - Medical errors are unfortunately common. The US Institute of Medicine proposed guidelines for mitigating and disclosing errors. Implementing these recommendations in pathology will require a better understanding of how errors occur in pathology, the relationship between pathologists and treating clinicians in reducing error, and pathologists' experiences with and attitudes toward disclosure of medical error. OBJECTIVE: - To understand pathologists' attitudes toward disclosing pathology error to treating clinicians and patients...
March 31, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28322587/development-and-validation-of-targeted-next-generation-sequencing-panels-for-detection-of-germline-variants-in-inherited-diseases
#12
Avni Santani, Jill Murrell, Birgit Funke, Zhenming Yu, Madhuri Hegde, Rong Mao, Andrea Ferreira-Gonzalez, Karl V Voelkerding, Karen E Weck
CONTEXT: - The number of targeted next-generation sequencing (NGS) panels for genetic diseases offered by clinical laboratories is rapidly increasing. Before an NGS-based test is implemented in a clinical laboratory, appropriate validation studies are needed to determine the performance characteristics of the test. OBJECTIVE: - To provide examples of assay design and validation of targeted NGS gene panels for the detection of germline variants associated with inherited disorders...
March 21, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28301228/the-evolving-classification-of-pulmonary-hypertension
#13
Michelle Foshat, Nahal Boroumand
CONTEXT: - An explosion of information on pulmonary hypertension has occurred during the past few decades. The perception of this disease has shifted from purely clinical to incorporate new knowledge of the underlying pathology. This transfer has occurred in light of advancements in pathophysiology, histology, and molecular medical diagnostics. OBJECTIVES: - To update readers about the evolving understanding of the etiology and pathogenesis of pulmonary hypertension and to demonstrate how pathology has shaped the current classification...
March 16, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28301227/template-for-reporting-results-of-biomarker-testing-of-specimens-from-patients-with-carcinoma-of-the-endometrium
#14
Teri A Longacre, Russell Broaddus, Linus T Chuang, Michael B Cohen, Elke A Jarboe, George L Mutter, Christopher N Otis, Richard J Zaino
No abstract text is available yet for this article.
March 16, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28301226/false-negative-interpretation-of-adenocarcinoma-in-situ-in-the-college-of-american-pathologists-gynecologic-pap-education-program
#15
Chengquan Zhao, Barbara A Crothers, Z Laura Tabatabai, Zaibo Li, Mohiedean Ghofrani, Rhona J Souers, Mujtaba Husain, Fang Fan, Rulong Shen, Idris Tolgay Ocal, Christine N Booth, Kelly Goodrich, Donna Russell, Diane D Davey, College Of American Pathologists Cytopathology Committee
CONTEXT: - Adenocarcinoma in situ (AIS) is difficult to correctly interpret on Papanicolaou (Pap) cytology slides and false-negative interpretations of AIS can cause significant problems in daily practice. OBJECTIVE: - To investigate the false-negative interpretation rate of AIS and the factors related to false-negative interpretation through responses in an educational environment. DESIGN: - We retrospectively evaluated 11‚ÄČ337 responses in the PAP Education Program (PAP-Edu) from 173 AIS slides from 2011 to 2015...
March 16, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28301225/optimal-diagnostic-yield-achieved-with-on-site-pathology-evaluation-of-fine-needle-aspiration-assisted-core-biopsies-for-pediatric-osseous-lesions-a-single-center-experience
#16
Kalyani Patel, Darryl Kinnear, Norma M Quintanilla, John Hicks, Eumenia Castro, Choladda Curry, John Dormans, Daniel J Ashton, J Alberto Hernandez, Hao Wu
CONTEXT: - Image-guided, fine-needle aspiration-assisted core needle biopsy with an on-site evaluation by a pathologist (FNACBP) of osseous lesions is not a common practice in pediatric institutions. OBJECTIVES: - To evaluate the diagnostic adequacy and accuracy of FNACBP for pediatric osseous lesions and to compare the adequacy with procedures that do not use fine-needle aspiration. DESIGN: - Six-year, retrospective review of 144 consecutive children biopsied for osseous lesions with and without fine-needle aspiration assistance...
March 16, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28234015/targeted-next-generation-sequencing-for-human-leukocyte-antigen-typing-in-a-clinical-laboratory-metrics-of-relevance-and-considerations-for-its-successful-implementation
#17
Manish J Gandhi, Deborah Ferriola, Yanping Huang, Jamie L Duke, Dimitri Monos
CONTEXT: -Numerous feasibility studies to type human leukocyte antigens (HLAs) by next-generation sequencing (NGS) have led to the development of vendor-supported kits for HLA typing by NGS. Some clinical laboratories have introduced HLA-NGS, and many are investigating the introduction. Standards from accrediting agencies form the regulatory framework for introducing this test into clinical laboratories. OBJECTIVES: -To provide an assessment of metrics and considerations relevant to the successful implementation of clinical HLA-NGS typing, and to provide as a reference a validated HLA-NGS protocol used clinically since December 2013 at the Children's Hospital of Philadelphia (Philadelphia, Pennsylvania)...
February 24, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28225303/initial-diagnostic-workup-of-acute-leukemia-guideline-from-the-college-of-american-pathologists-and-the-american-society-of-hematology
#18
Daniel A Arber, Michael J Borowitz, Melissa Cessna, Joan Etzell, Kathryn Foucar, Robert P Hasserjian, J Douglas Rizzo, Karl Theil, Sa A Wang, Anthony T Smith, R Bryan Rumble, Nicole E Thomas, James W Vardiman
CONTEXT: -A complete diagnosis of acute leukemia requires knowledge of clinical information combined with morphologic evaluation, immunophenotyping and karyotype analysis, and often, molecular genetic testing. Although many aspects of the workup for acute leukemia are well accepted, few guidelines have addressed the different aspects of the diagnostic evaluation of samples from patients suspected to have acute leukemia. OBJECTIVE: -To develop a guideline for treating physicians and pathologists involved in the diagnostic and prognostic evaluation of new acute leukemia samples, including acute lymphoblastic leukemia, acute myeloid leukemia, and acute leukemias of ambiguous lineage...
February 22, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28169559/challenges-in-diagnosing-medication-resins-in-surgical-pathology-specimens-a-crystal-clear-review-guide
#19
Raul S Gonzalez, Stephen M Lagana, Oliver Szeto, Christina A Arnold
CONTEXT: -Medication resins, including Kayexalate, sevelamer, and bile acid sequestrants, can be encountered in gastrointestinal tract specimens. Their classic histologic appearances have been well documented, but pathologist recognition of the resins is 75%, patient history is not always available, and atypical morphologic findings are sometimes present. OBJECTIVE: -To offer a succinct overview of resins in the gastrointestinal tract, including typical and atypical appearances, in order to serve as a quick reference guide...
February 7, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28169558/validation-of-metagenomic-next-generation-sequencing-tests-for-universal-pathogen-detection
#20
Robert Schlaberg, Charles Y Chiu, Steve Miller, Gary W Procop, George Weinstock
CONTEXT: -Metagenomic sequencing can be used for detection of any pathogens using unbiased, shotgun next-generation sequencing (NGS), without the need for sequence-specific amplification. Proof-of-concept has been demonstrated in infectious disease outbreaks of unknown causes and in patients with suspected infections but negative results for conventional tests. Metagenomic NGS tests hold great promise to improve infectious disease diagnostics, especially in immunocompromised and critically ill patients...
February 7, 2017: Archives of Pathology & Laboratory Medicine
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