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Virchows Archiv: An International Journal of Pathology

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https://www.readbyqxmd.com/read/29333594/ras-testing-for-colorectal-cancer-patients-is-reliable-in-european-laboratories-that-pass-external-quality-assessment
#1
V Tack, M J L Ligtenberg, A G Siebers, P D M Rombout, P D Dabir, R D A Weren, J H J M van Krieken, E M C Dequeker
Wild-type status of KRAS and the NRAS gene (exon 2, 3, and 4) in the tumor should be determined before treatment of metastatic colorectal cancer (mCRC) patients with EGFR-targeting agents. There is a large variation in test methods to determine RAS status, and more sensitive detection methods were recently introduced. Data from quality assessment programs indicate substantial error rates. This study assessed the completeness and correctness of RAS testing in European laboratories that successfully passed external quality assessment (EQA)...
January 15, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29332133/fumarate-hydratase-fh-deficiency-in-uterine-leiomyomas-recognition-by-histological-features-versus-blind-immunoscreening
#2
Lisa Siegler, Ramona Erber, Stefanie Burghaus, Tobias Brodkorb, David Wachter, Nafisa Wilkinson, James Bolton, Helen Stringfellow, Florian Haller, Matthias W Beckmann, Arndt Hartmann, Abbas Agaimy
Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) syndrome is a rare autosomal dominant disease caused by germline mutations in the fumarate hydratase (FH) gene. Affected individuals develop cutaneous and uterine leiomyomas and aggressive RCC. To date, only few publications described the frequency and morphology of FH-deficient uterine leiomyomas. We reviewed 22 cases collected over 8 years from routine and consultation files based on distinctive histological features. In addition, we screened 580 consecutive uterine leiomyomas from 484 patients, 23 extra-uterine and 8 uterine leiomyosarcomas, and 6 leiomyomas with bizarre nuclei for FH loss using immunohistochemistry (IHC) on tissue microarrays (TMAs)...
January 13, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29327138/handling-and-reporting-of-transperineal-template-prostate-biopsy-in-europe-a-web-based-survey-by-the-european-network-of-uropathology-enup
#3
Solene-Florence Kammerer-Jacquet, Eva Compérat, Lars Egevad, Ondra Hes, Jon Oxley, Murali Varma, Glen Kristiansen, Daniel M Berney
Transperineal template prostate biopsies (TTPB) are performed for assessments after unexpected negative transrectal ultrasound biopsies (TRUSB), correlation with imaging findings and during active surveillance. The impact of TTPBs on pathology has not been analysed. The European Network of Uropathology (ENUP) distributed a survey on TTPB, including how specimens were received, processed and analysed. Two hundred forty-four replies were received from 22 countries with TTPBs seen by 68.4% of the responders (n = 167)...
January 11, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29327137/microrna-expression-in-smarcb1-ini1-deficient-sinonasal-carcinoma-a-clinicopathological-and-molecular-genetic-study
#4
Jan Laco, Helena Kovaříková, Marcela Chmelařová, Hana Vošmiková, Kateřina Sieglová, Ivana Baranová, Pavel Dundr, Kristýna Němejcová, Jaroslav Michálek, Jana Šatanková, Milan Vošmik, Aleš Ryška
No abstract text is available yet for this article.
January 11, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29308530/the-incidence-mutational-status-risk-classification-and-referral-pattern-of-gastro-intestinal-stromal-tumours-in-the-netherlands-a-nationwide-pathology-registry-palga-study
#5
Arie J Verschoor, J V M G Bovée, L I H Overbeek, P C W Hogendoorn, H Gelderblom
Symptomatic gastrointestinal stromal tumours (GIST) are infrequent with an incidence of 12.7 per million inhabitants in the western population. We studied whether the incidence of GIST has further increased between 2003 and 2012 and assessed the frequency of mutations, risk groups, histological subtypes and immunohistochemistry results. From PALGA, the nationwide Dutch Pathology Registry, pathology excerpts from all patients with a GIST or GIST-like tumour between 2003 and 2012 were retrieved to calculate incidence rates...
January 8, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29302754/the-first-report-of-a-5-year-period-cancer-registry-in-greece-2009-2013-a-pathology-based-cancer-registry
#6
Eleni Patsea, Loukas Kaklamanis, Anna Batistatou
Cancer registries are essential in health care, since they allow more accurate planning of necessary health services and evaluation of programs for cancer prevention and control. The Hellenic Society of Pathology (HSP) having recognized the lack of such information in Greece has undertaken the task of a 5-year pathology-based cancer registry in Greece (2009-2013). In this study, > 95% of all pathology laboratories in the national health system hospitals and 100% of pathology laboratories in private hospitals, as well as > 80% of private pathology laboratories have contributed their data...
January 4, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29285637/lymphomas-in-igg4-related-disease-clinicopathologic-features-in-a-western-population
#7
Jacob R Bledsoe, Zachary S Wallace, John H Stone, Vikram Deshpande, Judith A Ferry
Lymphomas that occur in the setting of IgG4-related disease (IgG4-RD) are uncommon. Most reported cases derive from Asia and are MALT lymphomas occurring in orbital IgG4-RD. The spectrum of lymphomas among IgG4-RD patients in the Western world remains poorly defined. The aim of this study was to report our experience with lymphomas occurring in IgG4-RD. Eight cases were identified from the pathology and consultation files. The median age was 61 years (range 22-68) at IgG4-RD diagnosis and 63.5 years (range 33-79) at lymphoma diagnosis, with a M:F ratio of 4:4...
December 28, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29282536/inflammatory-and-infectious-pathology-of-the-gastrointestinal-tract-an-introduction
#8
EDITORIAL
Gregory Y Lauwers, Cord Langner
No abstract text is available yet for this article.
December 28, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29280080/correction-to-ki67-labeling-index-assessment-and-prognostic-role-in-gastroenteropancreatic-neuroendocrine-neoplasms
#9
Günter Klöppel, Stefano La Rosa
The authors of the above article have correct the caption for Figure 3 - namely the second sentence - clarifying the information depicted within the picture correcting the Ki67 index percentage. Figure 3 and the corrected caption can be found below.
December 26, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29270870/fgfr1-gene-amplification-in-squamous-cell-carcinomas-of-the-lung-a-potential-favorable-prognostic-marker-for-women-and-for-patients-with-advanced-cancer
#10
Fidelis Andrea Flockerzi, Cristiana Roggia, Frank Langer, Bernd Holleczek, Rainer M Bohle
In squamous cell carcinoma (SCC) of the lung, mutations within the genes of fibroblast growth factor receptors (FGFR) such as K660N/K660E in FGFR2 and R248C/S249C in FGFR3 and FGFR1 gene amplification have been described, but their prognostic relevance still remains unclear. In order to detect the mutation frequencies and to define their prognostic value for associated clinicopathologic features and survival of patients, resected ΔNp63/p40-positive SCC of the lung (n = 101) were screened for FGFR1 gene amplification by fluorescence in situ hybridization performed on formalin-fixed paraffin embedded tissues and for the presumed driver mutations in genes of FGFR2 and FGFR3 by PCR and Sanger sequencing...
December 21, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29243125/minichromosome-maintenance-complex-component-6-mcm6-expression-correlates-with-histological-grade-and-survival-in-endometrioid-endometrial-adenocarcinoma
#11
Judicaël Hotton, Mikaël Agopiantz, Agnès Leroux, Claire Charra-Brunaud, Béatrice Marie, Hélène Busby-Venner, Olivier Morel, Jean-Louis Guéant, Jean-Michel Vignaud, Shyue-Fang Battaglia-Hsu, Guillaume Gauchotte
Minichromosome maintenance complex component 6 (MCM6) is involved in initiating DNA replication and is upregulated during licensed G0 phase of the cell cycle. This early expression permits its labeling of more proliferating cells than those by Ki-67. Here using a cohort of 89 endometrioid adenocarcinoma, we report findings made on the prognostic value of MCM6 based on immunohistochemical labeling index (LI) of the protein in comparison with that of Ki67 as no such information is currently available. Additionally, we examined the prognostic values of these markers based on their mRNA expression using a cohort of uterine corpus endometrial carcinoma (UCEC, n = 307) taken from The Cancer Genome Atlas (TCGA) database...
December 14, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29243124/gut-microbiome-a-new-player-in-gastrointestinal-disease
#12
Gregor Gorkiewicz, Alexander Moschen
The gastrointestinal (GI) tract harbors a diverse and host-specific gut microbial community. Whereas host-microbe interactions are based on homeostasis and mutualism, the microbiome also contributes to disease development. In this review, we summarize recent findings connecting the GI microbiome with GI disease. Starting with a description of biochemical factors shaping microbial compositions in each gut segment along the longitudinal axis, improved histological techniques enabling high resolution visualization of the spatial microbiome structure are highlighted...
December 14, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29234950/the-evolution-of-endometrial-carcinoma-classification-through-application-of-immunohistochemistry-and-molecular-diagnostics-past-present-and-future
#13
REVIEW
Emily A Goebel, August Vidal, Xavier Matias-Guiu, C Blake Gilks
Uterine cancer was first subclassified based on anatomic site, separating those tumours arising from the endometrium from cervical cancers. There was then further subclassification of endometrial cancers based on cell type, and this correlated with the Type I and Type II categories identified through the epidemiological studies of Bokhman, with endometrioid carcinoma corresponding (approximately) to Type I and serous carcinoma to Type II. These histotypes are not clearly separable in practice, however, with considerable interobserver variability in histotype diagnosis, especially for high-grade tumours...
December 12, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29209757/eighth-edition-of-the-uicc-classification-of-malignant-tumours-an-overview-of-the-changes-in-the-pathological-tnm-classification-criteria-what-has-changed-and-why
#14
REVIEW
Luca Bertero, Federica Massa, Jasna Metovic, Roberto Zanetti, Isabella Castellano, Umberto Ricardi, Mauro Papotti, Paola Cassoni
The TNM classification of malignant tumours is a mainstay tool in clinical practice and research for prognostic assessment of patients, treatment allocation and trial enrolment, as well as for epidemiological studies and data collection by cancer registries worldwide. Pathological TNM (pTNM) represents the pathological classification of a tumor, assigned after surgical resection or adequate sampling by biopsy, and periodical updates to the relative classification criteria are necessary to preserve its clinical relevance by integrating newly reported data...
December 5, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29198034/population-level-effect-of-molecular-testing-and-targeted-therapy-in-patients-with-advanced-pulmonary-adenocarcinoma-a-prospective-cohort-study
#15
Christine Schwegler, Dinu Kaufmann, David Pfeiffer, Stefan Aebi, Joachim Diebold, Oliver Gautschi
Large cancer centres in the USA demonstrated that molecular diagnosis and targeted therapy improved overall survival of patients with advanced pulmonary adenocarcinoma. We validated this finding in a rural area of Switzerland, served by private practices, community hospitals and a tertiary referral centre. We conducted a prospective cohort study with the Cancer Registry of Central Switzerland, covering 4 cantons and 517,000 inhabitants. All residents newly diagnosed with stage IV pulmonary adenocarcinoma from 2010 to 2014 were enrolled...
December 2, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29196805/correction-to-abstracts-29th-european-congress-of-pathology
#16
H Al-Masri, M Ratcliffe, A Sharpe, C Barker, P Scorer, M Scott, M Rebelatto, J Walker
Due to an error with the registration system, the following abstract was regrettably omitted from the Poster Sessions. The abstract should have been included as PS-10-021 and displayed on page S166.
December 2, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29196804/igg4-related-disease-with-emphasis-on-the-biopsy-diagnosis-of-autoimmune-pancreatitis-and-sclerosing-cholangitis
#17
REVIEW
Sönke Detlefsen, Günter Klöppel
In 2011, chronic fibroinflammatory processes occurring simultaneously or metachronously in various organs and associated with elevated IgG4 serum levels and/or tissue infiltration with IgG4-positive plasma cells have been recognized as manifestations of a systemic disorder called IgG4-related disease (IgG4-RD). The histologic key findings are lymphoplasmacytic infiltration rich in IgG4-positive plasma cells combined with storiform fibrosis and obliterative phlebitis. Among the organs mainly affected by IgG4-RD are the pancreas and the extrahepatic bile ducts...
December 1, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29177895/biopsy-diagnosis-of-colitis-an-algorithmic-approach
#18
Deepa T Patil, Robert D Odze
Certain types of colitides, such as collagenous colitis, lymphocytic colitis, and ischemic colitis, have distinct histologic features that allow for a specific diagnosis. However, in most colonic biopsy specimens, a definite diagnosis cannot be established on the basis of histology alone. Thus, in most cases of colitis, it is helpful to utilize a systematic approach in order to recognize patterns of injury. This information in conjunction with clinical and laboratory findings may help pathologists narrow the differential diagnosis and/or establish a more definite etiology for the patient's illness in order to guide clinical management...
November 25, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29170871/the-diagnostic-role-of-pten-and-arid1a-in-serous-effusions
#19
Ben Davidson, Maurizio Pinamonti, Dolors Cuevas, Arild Holth, Pio Zeppa, Thomas Hager, Jeremias Wohlschlaeger, Martin Tötsch
The aim of this study was to analyze the diagnostic role of PTEN and ARID1A in effusion cytology. Effusions (n = 279), consisting of 226 carcinomas (70 ovarian, 64 breast, 36 lung, and 15 uterine corpus carcinomas; 41 carcinomas of other origin) and 53 malignant mesotheliomas, were analyzed for PTEN and ARID1A expression using immunohistochemistry. PTEN was preserved in 166 (59%) tumors, partially lost in 38 (14%), and absent in 75 (27%), with lower expression in malignant mesotheliomas compared to carcinomas, though not significantly (p = 0...
November 24, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29167990/histologic-analysis-has-a-prognostical-value-in-colorectal-biopsies-assessed-for-suspicion-of-graft-versus-host-disease
#20
Fanny Sauvestre, Geneviève Belleannée, Claire Bréal, Catherine Mohr, Harold IpKan Fong, Sébastien Cossin, Reza Tabrizi, Noël Milpied, Stéphane Vigouroux, Jean-François Goussot, Marion Marty
Gastrointestinal (GI) graft-versus-host-disease (GVHD) is a common and severe complication of allogeneic hematopoietic stem cell transplantation, but clinical and histological features are unspecific. The aim of this study was to correlate the histological GI GVHD grade with the clinical outcomes. In a retrospective study of 112 patients with clinically suspected GI GVHD, colonic biopsies were reviewed by three pathologists without knowledge of the corresponding clinical data and classified in four scores, according to the NIH Consensus Project recommendations: no GVHD, possible, probable, and unequivocal GVHD...
November 22, 2017: Virchows Archiv: An International Journal of Pathology
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