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Virchows Archiv: An International Journal of Pathology

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https://www.readbyqxmd.com/read/28643014/neuron-navigator-2-and-cyclin-d2-are-new-candidate-prognostic-markers-in-uterine-sarcoma
#1
Ben Davidson, Ellen Hellesylt, Arild Holth, Håvard Emil Danielsen, Tone Skeie-Jensen, Betina Katz
The objective of this study was to validate the diagnostic and clinical role of four protein products of genes previously found to be differentially expressed in uterine low-grade endometrial stromal sarcoma (LG-ESS) compared to uterine leiomyosarcoma (LMS). Protein expression by immunohistochemistry of transgelin (TGLN), neuron navigator-2 (NAV2), fatty acid binding protein-3 (FABP3), and cyclin D2 (CCND2) was analyzed in 305 uterine sarcomas (231 LMS, 74 LG-ESS). Expression was analyzed for association with clinicopathologic parameters and survival...
June 22, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28639053/managing-the-genomic-revolution-in-cancer-diagnostics
#2
Doreen Nguyen, Christopher D Gocke
Molecular tumor profiling is now a routine part of patient care, revealing targetable genomic alterations and molecularly distinct tumor subtypes with therapeutic and prognostic implications. The widespread adoption of next-generation sequencing technologies has greatly facilitated clinical implementation of genomic data and opened the door for high-throughput multigene-targeted sequencing. Herein, we discuss the variability of cancer genetic profiling currently offered by clinical laboratories, the challenges of applying rapidly evolving medical knowledge to individual patients, and the need for more standardized population-based molecular profiling...
June 21, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28631159/distinctive-pathological-and-clinical-features-of-lung-carcinoids-with-high-proliferation-index
#3
Caterina Marchiò, Gaia Gatti, Federica Massa, Luca Bertero, Pierluigi Filosso, Giuseppe Pelosi, Paola Cassoni, Marco Volante, Mauro Papotti
Typical (TCs) and atypical carcinoids (ACs) are defined based on morphological criteria, and no grading system is currently accepted to further stratify these entities. The 2015 WHO classification restricts the Ki-67 role to biopsy or cytology samples, rather than for prognostic prediction. We aimed to investigate whether values and patterns of Ki-67 alone would allow for a clinically meaningful stratification of lung carcinoids, regardless of histological typing. Ki-67 proliferation index and pattern (homogeneous versus heterogeneous expression) were assessed in a cohort of 171 TCs and 68 ACs...
June 19, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28624995/how-does-it-feel-to-be-a-pathology-resident-results-of-a-survey-on-experiences-and-job-satisfaction-during-pathology-residency
#4
Burcin Pehlivanoglu, Hur Hassoy, Catarina Calle, Amelie Dendooven, ILKe Nalbantoglu, Lidiya Reshchikova, Gulen Gul, Basak Doganavsargil
Residents' career choices and professional motivation can be affected from perception of their role and recognition within a medical team as well as their educational and workplace experiences. To evaluate pathology trainees' perceptions of their pathology residency, we conducted a 42-item survey via a web-based link questioning respondents' personal and institutional background, workplace, training conditions, and job satisfaction level. For the 208 residents from different European countries who responded, personal expectations in terms of quality of life (53%) and scientific excitement (52%) were the most common reasons why they chose and enjoy pathology...
June 17, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28620786/langerhans-und-merkel-a-nervous-epidermal-dispute
#5
Maria Rita Gaiser, Timo Gaiser
No abstract text is available yet for this article.
June 16, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28616732/erratum-to-early-gastric-adenocarcinoma-arising-within-foveolar-type-dysplasia-in-a-patient-with-muir-torre-variant-lynch-syndrome
#6
Tristan F P McKnight, Amy E Noffsinger, Kara K Landry, Ovais Ahmed, Rebecca Wilcox
No abstract text is available yet for this article.
June 15, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28600602/early-stage-minor-salivary-gland-adenoid-cystic-carcinoma-has-favourable-prognosis
#7
Hanna Hämetoja, Karoliina Hirvonen, Jaana Hagström, Ilmo Leivo, Kauko Saarilahti, Satu Apajalahti, Caj Haglund, Antti Mäkitie, Leif Bäck
The purpose of the study was to evaluate the long-term outcome of minor salivary and mucous gland (MiSG) adenoid cystic carcinoma (ACC) of the head and neck and to compare the results with earlier reports including our recently published series on major salivary gland (MaSG) ACC. The study comprised 68 MiSG ACCs operated during 1974-2012 at the Helsinki University Hospital, Helsinki, Finland. Medical records and histological samples were reviewed. Our previously published cohort comprising 54 MaSG ACCs during the years from 1974 to 2009 was used for comparison...
June 10, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28597077/is-rosai-dorfman-disease-a-reactve-process-detection-of-a-map2k1-l115v-mutation-in-a-case-of-rosai-dorfman-disease
#8
Matthias S Matter, Michel Bihl, Darius Juskevicius, Alexandar Tzankov
No abstract text is available yet for this article.
June 9, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28597080/intratumoral-fusobacterium-nucleatum-abundance-correlates-with-macrophage-infiltration-and-cdkn2a-methylation-in-microsatellite-unstable-colorectal-carcinoma
#9
Hye Eun Park, Jung Ho Kim, Nam-Yun Cho, Hye Seung Lee, Gyeong Hoon Kang
Fusobacterium nucleatum (Fn), a specific species of gut microbiota, has been suggested to be enriched in the microsatellite instability-high (MSI-H) molecular subtype of colorectal carcinomas (CRCs). However, the clinicopathologic and molecular factors that interact with Fn in MSI-H CRCs are poorly understood. In this study, 16S ribosomal RNA gene DNA sequence of Fn was quantitatively measured by real-time polymerase chain reaction in tumor DNA samples from a total of 160 surgically resected MSI-H CRC tissues...
June 8, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28597079/men1-mutations-and-potentially-men1-targeting-mirnas-are-responsible-for-menin-deficiency-in-sporadic-and-men1-syndrome-associated-primary-hyperparathyroidism
#10
Vince Kornél Grolmusz, Katalin Borka, Annamária Kövesdi, Kinga Németh, Katalin Balogh, Csaba Dékány, András Kiss, Anna Szentpéteri, Beatrix Sármán, Anikó Somogyi, Éva Csajbók, Zsuzsanna Valkusz, Miklós Tóth, Péter Igaz, Károly Rácz, Attila Patócs
Inherited, germline mutations of menin-coding MEN1 gene cause multiple endocrine neoplasia type 1 (MEN1), while somatic MEN1 mutations are the sole main driver mutations in sporadic primary hyperparathyroidism (PHPT), suggesting that menin deficiency has a central role in the pathogenesis of PHPT. MiRNAs are small, noncoding RNAs posttranscriptionally regulating gene expression. Our aim was to investigate both the role of MEN1 mutations and potentially MEN1-targeting miRNAs as the underlying cause of menin deficiency in MEN1-associated and sporadic PHPT tissues...
June 8, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28597078/spectrum-of-genetic-mutations-in-de-novo-punlmp-of-the-urinary-bladder
#11
Maria Del Carmen Rodriguez Pena, Aline C Tregnago, Marie-Lisa Eich, Simeon Springer, Yuxuan Wang, Diana Taheri, Dilek Ertoy, Kazutoshi Fujita, Stephania M Bezerra, Isabela W Cunha, Maria Rosaria Raspollini, Lijia Yu, Trinity J Bivalacqua, Nickolas Papadopoulos, Kenneth W Kinzler, Bert Vogelstein, George J Netto
Our group and others have previously demonstrated the presence of TERT promoter mutations (TERT-mut) in 60-80% of urothelial carcinomas and some of their histologic variants. Five other genes have been frequently implicated in bladder cancer: FGRF3, TP53, PIK3CA, HRAS, and CDKN2A. In the current study, we sought to determine the prevalence of mutations in TERT and these five other genes in de novo papillary urothelial neoplasms of low malignant potential (PUNLMP) of the urinary bladder. A retrospective search of our archives for PUNLMP was performed and 30 de novo cases were identified and included in the study...
June 8, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28589387/non-invasive-papillary-urothelial-carcinoma-of-the-vagina-molecular-analysis-of-a-rare-case-identifies-clonal-relationship-to-non-invasive-urothelial-carcinoma-of-the-bladder
#12
Hind N Warzecha, Falko Fend, Julia Steinhilber, Harald Abele, Melanie Henes, Niklas Harland, Annette Staebler
We present a rare case of non-invasive papillary urothelial carcinoma of the vagina as the initial presentation of a multicentric urothelial carcinoma also involving bladder and renal pelvis and report for the first time in the literature the molecular alterations observed in the vaginal urothelial lesion and the synchronous lesions of the urinary tract. In this case, the non-invasive papillary urothelial carcinoma in the vagina displayed the same genetic alterations in the FGFR3 and PIK3CA genes as those seen in the non-invasive papillary urothelial carcinoma of the bladder contrasting with the wild phenotype observed in the invasive urothelial carcinoma of the renal pelvis...
June 7, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28589386/navigating-the-jungles-of-tropical-infectious-gastrointestinal-pathology-a-pattern-based-approach-to-the-endoscopic-biopsy
#13
Tomas Slavik, Gregory Y Lauwers
International travels and global human migration have had the unforeseen consequence of increasing the exposure of histopathologists in developed countries to the pathology of tropical infectious disease. The gastrointestinal tract (GIT) is often the primary site of infection due to the faecal-oral route of transmission and the high risk of exposure to contaminated water, food or soil when travelling to these regions. Whilst current microbiologic techniques are far more sensitive than histology in detecting infectious pathogens, the histopathologist nonetheless retains a pivotal role in diagnosing tropical GIT disease...
June 6, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28573512/prognostic-impact-of-her-2-subclonal-amplification-in-breast-cancer
#14
Enrico Di Oto, Alba A Brandes, Maria C Cucchi, Maria P Foschini
The presence of a limited number of cells with HER-2 amplification (Subclonal Amplification) in breast carcinomas is occasionally encountered, but its prognostic impact is poorly known. The purpose of this study is to evaluate the prognostic impact of HER-2 Subclonal Amplification in a retrospective series of breast cancers. Accordingly, 81 consecutive breast carcinomas showing HER-2 Subclonal Amplification were obtained from the histology files (case series). These cases were subdivided into two groups: (a) those cases in which the HER-2 Subclonal Amplification was consonant to the accepted criteria for amplification, showing clusters of amplified cells, and (b) those cases with rare HER-2 Subclonal Amplification that did not reflect the accepted criteria for amplification, showing scattered amplified cells only...
June 2, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28573511/early-detection-the-impact-of-genomics
#15
M C J van Lanschot, L J W Bosch, M de Wit, B Carvalho, G A Meijer
The field of genomics has shifted our view on disease development by providing insights in the molecular and functional processes encoded in the genome. In the case of cancer, many alterations in the DNA accumulate that enable tumor growth or even metastatic dissemination. Identification of molecular signatures that define different stages of progression towards cancer can enable early tumor detection. In this review, the impact of genomics will be addressed using early detection of colorectal cancer (CRC) as an example...
June 1, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28573510/b-cell-lymphomas-with-discordance-between-pathological-features-and-clinical-behavior
#16
Laurence de Leval, Christiane Copie-Bergman, Andreas Rosenwald, Lisa Rimsza, Stefania Pittaluga, Bettina Bisig, Stefan Dirnhofer, Fabio Facchetti, Stefano Pileri, Falko Fend, Andrew Wotherspoon
B-cell lymphomas encompass a large number of disease entities clinically ranging from indolent to aggressive. The defining pathological features usually predict clinical course, with small and large B-cell lymphomas correlating to low-grade vs high-grade features, but discordant situations may be encountered. Two sessions of the workshop of the XVIII meeting of the European Association for Haematopathology (EAHP) held in Basel in 2016 addressed this topic. One session illustrated various facets of "aggressiveness" in indolent lymphomas, either peculiar clinical manifestations, cytological variants, or unusual genetic features, as well as several examples of progression or transformation to a more aggressive disease...
June 1, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28567637/comparison-of-her2-amplification-status-among-breast-cancer-subgroups-offers-new-insights-in-pathways-of-breast-cancer-progression
#17
Kathleen Lambein, Mieke Van Bockstal, Lies Vandemaele, Rudy Van den Broecke, Veronique Cocquyt, Sofie Geenen, Hannelore Denys, Louis Libbrecht
Although the prognostic and predictive significance of human epidermal growth factor receptor 2 (HER2) in invasive breast cancer is well established, its role in ductal carcinoma in situ (DCIS) remains unclear. Reports on combined evaluation of both HER2 protein expression and HER2 amplification status in pure DCIS and DCIS adjacent to invasive ductal carcinoma (i.e., admixed DCIS) are scarce. In this study, immunohistochemistry and fluorescence in situ hybridization (FISH) were used to assess HER2 status in 72 cases of pure DCIS, 73 cases of DCIS admixed with invasive ductal carcinoma (IDC), and 60 cases of pure IDC...
May 31, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28555282/smarca4-deficient-pulmonary-adenocarcinoma-clinicopathological-immunohistochemical-and-molecular-characteristics-of-a-novel-aggressive-neoplasm-with-a-consistent-ttf1-neg-ck7-pos-heppar-1-pos-immunophenotype
#18
Abbas Agaimy, Florian Fuchs, Evgeny A Moskalev, Horia Sirbu, Arndt Hartmann, Florian Haller
Alterations in SMARCA4, a member of the chromatin remodeling Switch Sucrose Non-Fermentable (SWI/SNF) complex, characterize a subset of non-small cell lung cancer (NSCLC), but detailed morphological and immunophenotypic description of this tumor type is lacking. We describe 20 NSCLC cases found on routine screening not to express SMARCA4 by immunohistochemistry (IHC). These tumors were stained for CK7, TTF1, SMARCA2, SMARCA4, SMARCB1, and HepPar-1 and analyzed for molecular alterations, using a 160 cancer-related gene panel including the full coding sequence of SMARCA4...
May 30, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28555281/disease-activity-and-mucosal-healing-in-inflammatory-bowel-disease-a-new-role-for-histopathology
#19
Rish K Pai, Karel Geboes
Histologic evaluation of disease activity in the setting of inflammatory bowel disease is gaining interest within the gastroenterology community. Recent data suggests that histologic measurements of inflammation in ulcerative colitis are more sensitive at detecting disease activity and perform better than endoscopic measurements in predicting clinical outcomes. Histologic measurements are also increasingly used in ulcerative colitis clinical trials to assess response to new therapies. Histologic measurements of disease activity are less well studied in Crohn's disease, but are gaining attention...
May 30, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28551725/colorectal-cancer-molecular-profiling-from-ihc-to-ngs-in-search-of-optimal-algorithm
#20
Larissa V Furtado, Wade S Samowitz
Advances in defining the mutational landscape of colorectal cancer (CRC) over the past decades have revolutionized the molecular understanding and clinical testing algorithms for this disease. Mutation testing is standard of care for the work-up of CRCs. This review focuses on the current indications and strategies for molecular testing in CRC and discusses the potential changes in CRC testing approach associated with the emerging clinical application of genomic-based technologies.
May 27, 2017: Virchows Archiv: An International Journal of Pathology
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