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Virchows Archiv: An International Journal of Pathology

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https://www.readbyqxmd.com/read/28940014/clinicopathological-analysis-in-ptcl-nos-with-cadm1-expression
#1
Takeharu Kato, Hiroaki Miyoshi, Seiichiro Kobayashi, Noriaki Yoshida, Yoshitaka Imaizumi, Masao Seto, Kaoru Uchimaru, Yasushi Miyazaki, Koichi Ohshima
Peripheral T cell lymphoma, not otherwise specified (PTCL-NOS), is a heterogeneous disease with respect to clinicopathological features. Cell adhesion molecule 1 (CADM1) has been reported to be ectopically expressed in adult T cell leukaemia/lymphoma (ATLL). However, the frequency of CADM1 expression remains unknown in peripheral T cell lymphomas. In the current study, CADM1 expression was analysed in 88 PTCL-NOS patients. CADM1 was expressed in 14 of 88 (15.9%) PTCL-NOS cases, and its expression was associated with C-C chemokine receptor type 4 (CCR4) expression and nuclear atypia...
September 22, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28929387/distinct-histopathological-characteristics-in-colorectal-submucosal-invasive-carcinoma-arising-in-sessile-serrated-adenoma-polyp-and-conventional-tubular-adenoma
#2
Takashi Murakami, Hiroyuki Mitomi, Takashi Yao, Tsuyoshi Saito, Tomoyoshi Shibuya, Naoto Sakamoto, Taro Osada, Sumio Watanabe
The histopathological characteristics of colorectal submucosal invasive carcinoma arising in sessile serrated adenoma/polyp (SSA/P), a rare malignant tumour, have not yet been fully elucidated. To investigate the features of such, we retrospectively analysed 40 submucosal invasive carcinomas with SSA/P (CA-SSA/P) and compared them to 129 cases of submucosal invasive carcinoma with conventional tubular adenoma (CA-AD). We additionally performed hMLH1 immunostaining. CA-SSA/Ps were significantly smaller than CA-ADs (P < 0...
September 19, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28918544/tumor-regression-grading-of-gastrointestinal-cancers-after-neoadjuvant-therapy
#3
REVIEW
Rupert Langer, Karen Becker
Neoadjuvant therapy has been successfully introduced in the treatment of locally advanced gastrointestinal malignancies, particularly esophageal, gastric, and rectal cancers. The effects of preoperative chemo- or radiochemotherapy can be determined by histopathological investigation of the resection specimen following this treatment. Frequent histological findings after neoadjuvant therapy include various amounts of residual tumor, inflammation, resorptive changes with infiltrates of foamy histiocytes, foreign body reactions, and scarry fibrosis...
September 16, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28889247/guidelines-for-autopsy-investigation-of-sudden-cardiac-death-2017-update-from-the-association-for-european-cardiovascular-pathology
#4
Cristina Basso, Beatriz Aguilera, Jytte Banner, Stephan Cohle, Giulia d'Amati, Rosa Henriques de Gouveia, Cira di Gioia, Aurelie Fabre, Patrick J Gallagher, Ornella Leone, Joaquin Lucena, Lubov Mitrofanova, Pilar Molina, Sarah Parsons, Stefania Rizzo, Mary N Sheppard, Maria Paz Suárez Mier, S Kim Suvarna, Gaetano Thiene, Allard van der Wal, Aryan Vink, Katarzyna Michaud
Although sudden cardiac death (SCD) is one of the most important modes of death in Western countries, pathologists and public health physicians have not given this problem the attention it deserves. New methods of preventing potentially fatal arrhythmias have been developed and the accurate diagnosis of the causes of SCD is now of particular importance. Pathologists are responsible for determining the precise cause and mechanism of sudden death but there is still considerable variation in the way in which they approach this increasingly complex task...
September 9, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28889196/solid-pseudopapillary-neoplasm-presenting-as-a-primary-ovarian-mass-in-an-eighteen-year-old-female-report-of-a-case-and-review-of-the-literature
#5
Miglena K Komforti, Morris Edelman, Cathy Fan, Sharon X Liang
No abstract text is available yet for this article.
September 9, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28884371/egfr-t790m-mutation-testing-of-non-small-cell-lung-cancer-tissue-and-blood-samples-artificially-spiked-with-circulating-cell-free-tumor-dna-results-of-a-round-robin-trial
#6
Jana Fassunke, Michaela Angelika Ihle, Dido Lenze, Annika Lehmann, Michael Hummel, Claudia Vollbrecht, Roland Penzel, Anna-Lena Volckmar, Albrecht Stenzinger, Volker Endris, Andreas Jung, Ulrich Lehmann, Silke Zeugner, Gustavo Baretton, Hans Kreipe, Peter Schirmacher, Thomas Kirchner, Manfred Dietel, Reinhard Büttner, Sabine Merkelbach-Bruse
The European Commision (EC) recently approved osimertinib for the treatment of adult patients with locally advanced or metastatic non-small-cell lung cancer (NSCLC) harboring EGFR T790M mutations. Besides tissue-based testing, blood samples containing cell-free circulating tumor DNA (ctDNA) can be used to interrogate T790M status. Herein, we describe the conditions and results of a round robin trial (RRT) for T790M mutation testing in NSCLC tissue specimens and peripheral blood samples spiked with cell line DNA mimicking tumor-derived ctDNA...
September 8, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28879608/response-to-the-letter-to-the-editor-of-lambros-et-al
#7
LETTER
William Sterlacci, Alexandar Tzankov, Spasenija Savic
No abstract text is available yet for this article.
September 7, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28864906/composite-tumor-with-pheochromocytoma-and-immature-neuroblastoma-report-of-two-cases-with-cytogenetic-analysis-and-discussion-of-current-terminology
#8
Lily Tran, Carrie Fitzpatrick, Susan L Cohn, Peter Pytel
No abstract text is available yet for this article.
September 1, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28861615/about-met-expression-and-other-biomarkers-in-non-small-cell-lung-cancer
#9
LETTER
Laetitia Lambros, Isabelle Quintin-Roué, Briac Guibourg, Arnaud Uguen
No abstract text is available yet for this article.
August 31, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28861609/mir-375-and-yap1-expression-profiling-in-medullary-thyroid-carcinoma-and-their-correlation-with-clinical-pathological-features-and-outcome
#10
Francesca Galuppini, Loris Bertazza, Susi Barollo, Elisabetta Cavedon, Massimo Rugge, Vincenza Guzzardo, Diana Sacchi, Sara Watutantrige-Fernando, Federica Vianello, Caterina Mian, Gianmaria Pennelli
Medullary thyroid cancer (MTC) is a tumor marked by an indolent growth for which few prognostic factors and therapeutic strategies are actually available. Different studies have recently appraised well-differentiated thyroid cancers are characterized by a dysregulation in different microRNA sets; however, only few of them investigated the role of miRNA expression in MTCs. In this study, we have assessed the miR-375 expression in a series of 130 MTCs (104 are sporadic and 26 familial) with a median follow-up of 39 months (range 1-138) and then we have correlated our results with the clinical-pathological features and the patients' outcome...
August 31, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28849259/nrf2-peroxiredoxin-i-axis-in-polymorphous-adenocarcinoma-is-associated-with-low-matrix-metalloproteinase-2-level
#11
J M Brod, Ana Paula Dias Demasi, V A Montalli, L N Teixeira, C Furuse, M C Aguiar, A B Soares, M Sperandio, V C Araujo
Polymorphous adenocarcinoma (PAC) is a malignant epithelial neoplasm that affects almost exclusively the minor salivary glands, generally described as having a relatively good prognosis. Aberrant nuclear factor erythroid 2 (NF-E2)-related factor (Nrf2) activation in tumor cells has been associated with induction of antioxidant enzymes, such as peroxiredoxin I (Prx I) and increased matrix metalloproteinase (MMP) expression. In this context, the aim of the present study was to evaluate the expression of Nrf2 and correlate it with Prx I and MMP-2 secretion in PAC...
August 28, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28844115/in-reply-to-letter-to-the-editor-entitled-primary-pure-lymphoepithelioma-like-carcinoma-of-the-ureter
#12
LETTER
Antonio Lopez-Beltran, Gladell Paner, Ana Blanca, Rodolfo Montironi, Toyonori Tsuzuki, Yoji Nagashima, Shi-Sung Chuang, Khin Than Win, Leo Madruga, Maria R Raspollini, Liang Cheng
No abstract text is available yet for this article.
August 27, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28844110/transcriptome-comparison-identifies-potential-biomarkers-of-spine-and-skull-base-chordomas
#13
Achim H Bell, Franco DeMonte, Shaan M Raza, Laurence D Rhines, Claudio E Tatsui, Victor G Prieto, Gregory N Fuller, Diana Bell
Chordomas are rare, slowly growing, locally aggressive bone neoplasms that arise from embryonic remnants of the notochord, showing dual epithelial-mesenchymal differentiation. The high plasticity probably is the main reason for the high variety in phenotypes of chordoma, from its high heterogeneity on a cellular level to its subtype variations depending on tissue location, with its potential to develop from an inactive quiescent form to an aggressive cancer with extreme adaptability and resistance to drugs and other treatments...
August 27, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28844114/the-clinicopathologic-spectrum-of-mature-aggressive-b-cell-lymphomas
#14
REVIEW
Lisa Rimsza, Stefania Pittaluga, Stephan Dirnhofer, Christiane Copie-Bergman, Laurence de Leval, Fabio Facchetti, Stefano Pileri, Andreas Rosenwald, Andrew Wotherspoon, Falko Fend
Our understanding of mature aggressive B cell lymphomas has evolved significantly in the last years as reflected in the 2016 update of the WHO lymphoma classification. A main topic of the 2016 European Association for Haematopathology/Society of Hematopathology lymphoma workshop in Basel therefore was the clinicopathological spectrum of mature aggressive B cell lymphomas with the exception of conventional diffuse large B cell lymphoma. In this review, we summarize two sessions dedicated to "high-grade B cell lymphomas, with MYC and BCL2 and/or BCL6 rearrangements (so-called double/triple-hit lymphomas)" and "high-grade B cell lymphomas, NOS" as defined in the 2016 update of the WHO lymphoma classification, Burkitt lymphoma and related neoplasms, and terminally differentiated aggressive B cell lymphomas...
August 26, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28842747/increased-sox2-expression-in-salivary-gland-carcinoma-ex-pleomorphic-adenoma-progression-an-association-with-adverse-outcome
#15
Bruno Tavares Sedassari, Maria Fernanda Setúbal Destro Rodrigues, Thalita Santana Conceição, Fernanda Viviane Mariano, Venâncio Avancini Ferreira Alves, Fábio Daumas Nunes, Albina Altemani, Suzana Cantanhede Orsini Machado de Sousa
SOX2 is a regulatory factor of embryonic stem cells that has been implicated in carcinogenesis and cancer progression. We aimed to investigate the potential role of SOX2 in the stepwise progression from pleomorphic adenoma (PA) to invasive carcinoma ex pleomorphic adenoma (CXPA), evaluating its prognostic significance as well. Thirty PAs without malignant transformation and 25 CXPAs presenting both luminal or myoepithelial differentiation (7 intracapsular and 18 extracapsular) were evaluated immunohistochemically for SOX2 expression...
August 25, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28842744/multisite-tumor-sampling-enhances-the-detection-of-intratumor-heterogeneity-at-all-different-temporal-stages-of-tumor-evolution
#16
Asier Erramuzpe, Jesús M Cortés, José I López
Intratumor heterogeneity (ITH) is an inherent process of tumor development that has received much attention in previous years, as it has become a major obstacle for the success of targeted therapies. ITH is also temporally unpredictable across tumor evolution, which makes its precise characterization even more problematic since detection success depends on the precise temporal snapshot at which ITH is analyzed. New and more efficient strategies for tumor sampling are needed to overcome these difficulties which currently rely entirely on the pathologist's interpretation...
August 25, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28840321/review-of-the-implementation-of-plasma-ctdna-testing-on-behalf-of-iqn-path-asbl-a-perspective-from-an-eqa-providers-survey
#17
Zandra C Deans, Hannah Williams, Elisabeth M C Dequeker, Cleo Keppens, Nicola Normanno, Ed Schuuring, Simon J Patton, Melanie Cheetham, Rachel Butler, Jacqueline A Hall
No abstract text is available yet for this article.
August 25, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28836043/expression-of-neurotensin-receptor-1-in-endometrial-adenocarcinoma-is-correlated-with-histological-grade-and-clinical-outcome
#18
Mikaël Agopiantz, Patricia Forgez, Jean-Matthieu Casse, Stéphanie Lacomme, Claire Charra-Brunaud, Isabelle Clerc-Urmès, Olivier Morel, Céline Bonnet, Jean-Louis Guéant, Jean-Michel Vignaud, Anne Gompel, Guillaume Gauchotte
The promalignant effects of neurotensin (NTS) are sustained in many solid tumors, including hormone-dependent cancers. As the endometrium is also subjected to hormonal regulation, we evaluated the contribution of NTS to endometrial carcinogenesis. Neurotensin receptor 1 (NTSR1) expression and NTSR1 promoter methylation (HM450) were analyzed in 385 cases of endometrial carcinoma from The Cancer Genome Atlas (TCGA). Additionally, from a series of 100 endometrial carcinomas, and 66 benign endometrium samples, NTS and NTSR1 labeling was evaluated by immunohistochemistry...
August 24, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28825136/breast-cancer-subtype-discrimination-using-standardized-4-ihc-and-digital-image-analysis
#19
Marina Gándara-Cortes, Ángel Vázquez-Boquete, Beatriz Fernández-Rodríguez, Patricia Viaño, Dora Ínsua, Alejandro Seoane-Seoane, Francisco Gude, Rosalía Gallego, Máximo Fraga, José R Antúnez, Teresa Curiel, Eva Pérez-López, Tomás García-Caballero
Breast cancer is a heterogeneous disease. Surrogate classification of intrinsic subtypes of invasive carcinomas by combined immunohistochemistry for estrogen receptor (ER), progesterone receptor (PR), HER2, and Ki67 (4-IHC) has increased steadily since the 2011 St Gallen symposium, due to its rapid subtyping of tumors at a reasonable cost. An important step in improving 4-IHC reproducibility and reliability will be to provide reference values from the routine use of standardized 4-IHC followed by image analysis...
August 20, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28823044/diagnostic-implications-of-tert-promoter-mutation-status-in-diffuse-gliomas-in-a-routine-clinical-setting
#20
Ekkehard Hewer, Nadine Prebil, Sabina Berezowska, Marielena Gutt-Will, Philippe Schucht, Matthias S Dettmer, Erik Vassella
IDH (isocitrate dehydrogenase) gene mutations are present in most diffuse low-grade gliomas and define the clinico-pathological core of the respective morphologically defined entities. Conversely, according to the 2016 WHO classification, the majority of glioblastomas belong to the IDH-wildtype category, which is defined by exclusion. TERT (telomerase reverse transcriptase gene) promoter mutations have been suggested as a molecular marker for primary glioblastomas. We analyzed molecular, histopathological, and clinical profiles of a series of 110 consecutive diffuse gliomas (WHO grades II-IV) diagnosed at our institution, in which TERT promoter mutation analysis had been performed as part of diagnostic work-up...
August 19, 2017: Virchows Archiv: An International Journal of Pathology
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