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Virchows Archiv: An International Journal of Pathology

Xiaosheng He, Xutao Lin, Muyan Cai, Dejun Fan, Xiuting Chen, Lei Wang, Xiaojian Wu, Ping Lan, Jianping Wang
Cytoplasmic polyadenylation element-binding protein 4 (CPEB4), a zinc-finger-containing sequence-specific RNA-binding protein, has been associated with tumor proliferation, invasion, and migration. Expression of CPEB4 and its prognostic significance in human colorectal cancer (CRC) have not been studied. The aim of the present study was to investigate expression of CPEB4 and its prognostic significance in CRC. Expression of CPEB4 in CRC tissues from two independent cohorts was examined by immunohistochemistry...
October 22, 2016: Virchows Archiv: An International Journal of Pathology
Christopher P Hartley, David J Kwiatkowski, Lana Hamieh, Joel A Lefferts, Kerrington D Smith, Mikhail Lisovsky
No abstract text is available yet for this article.
October 18, 2016: Virchows Archiv: An International Journal of Pathology
João Lobo, Bianca Machado, Renata Vieira, Carla Bartosch
An accurate diagnosis of metastases to the ovary is essential for adequate patient management. The aim of this retrospective study was to characterize clinicopathological features of metastatic malignancies that presented as an ovarian mass and compare them with their corresponding primary tumors. We reviewed clinical files and histological material of 120 patients with metastases to the ovary, diagnosed in our center between 2000 and 2014. Metastases were diagnosed before (18 %), synchronously (33 %), or after (49 %) the primary tumor was identified; 25 % were single, 40 % were unilateral; 47 % were ≥13 cm...
October 18, 2016: Virchows Archiv: An International Journal of Pathology
Oleksandr N Kryvenko, Sean R Williamson, Kiril Trpkov, Nilesh S Gupta, Daniel Athanazio, Martin K Selig, Paul Taylor Smith, Cristina Magi-Galluzzi, Merce Jorda
Small cell-like change (SCLC) is a rare prostate lesion which has been described in only two previous studies (total of eight cases). Its relation to possible neuroendocrine differentiation remained unclear. We evaluated 11 SCLC cases with immunohistochemistry and electron microscopy. SCLC was characterized by crowded hyperchromatic small nuclei with scant cytoplasm, rosette-like structures, finely granular chromatin with indistinct nucleoli, and lack of mitoses, apoptoses, and necroses. In nine cases, SCLC was admixed with high-grade cancer, and in two cases, it represented a separate intraductal process, spatially remote from a low-volume Gleason score 6 (grade group 1) cancer...
October 14, 2016: Virchows Archiv: An International Journal of Pathology
Almira Nasirden, Tsuyoshi Saito, Yuki Fukumura, Kieko Hara, Keisuke Akaike, Aiko Kurisaki-Arakawa, Miki Asahina, Atsushi Yamashita, Ran Tomomasa, Takuo Hayashi, Atsushi Arakawa, Takashi Yao
The prognostic value of BRAF (V600E) and TERT promoter mutation in papillary thyroid carcinoma (PTC) is controversial. We examined alterations in BRAF (V600E) and TERT promoter by PCR-direct sequencing in PTC of 144 Japanese patients. Alternative lengthening of telomeres was examined as another mechanism of telomere maintenance by immunohistochemical staining for ATRX and DAXX. Of the clinicopathological characteristics, regional lymph node metastasis, extra-thyroid extension, multifocality/intrathyroidal spread, and advanced stage (III/V) were associated with shorter disease-free survival rate (DFSR)...
October 7, 2016: Virchows Archiv: An International Journal of Pathology
Shutaro Hori, Kazuaki Shimada, Yoshinori Ino, Seiji Oguro, Minoru Esaki, Satoshi Nara, Yoji Kishi, Tomoo Kosuge, Yukinori Hattori, Aoi Sukeda, Yuko Kitagawa, Yae Kanai, Nobuyoshi Hiraoka
As macroscopic appearance represents tumor microenvironment, it may also reflect the biological and clinicopathological characteristics of a cancer. The aim of the study was to evaluate the clinicopathological significance of the gross appearance of pancreatic ductal adenocarcinoma (PDA). We investigated fresh macroscopic features in 352 cases of PDA and their clinicopathological significance. Three unique gross features were found: a honeycomb-like appearance (diffusely distributed microcysts and interstitial fibrotic thickening), macroscopic necrosis, and a tube/branching structure (apparent small cylindrical or linear structure)...
October 5, 2016: Virchows Archiv: An International Journal of Pathology
Hector Mesa, Scott Gilles, Milton W Datta, Paari Murugan, Wendy Larson, Susan Dachel, Carlos Manivel
We performed a detailed morphologic, immunophenotypic, and endocrine characterization of neoplastic and non-neoplastic lesions of androgen-producing cells known to harbor or lack Reinke crystals (RCs) with an aim to provide further insight into the nature of these cells and crystals. Study cases were selected from the files of participating hospitals and subclassified according to current classifications: 20 with Leydig cell tumors (LCTs), 2 with testicular adrenal rest tumors (TARTs), 2 with testicular tumors of adrenogenital syndrome (TTAGS), and 2 with androgen insensitivity syndrome (AIS)...
October 1, 2016: Virchows Archiv: An International Journal of Pathology
Abhijit Chougule, Amanjit Bal, Ashim Das, Pavneet Singh Kohli, Gurpreet Singh
Attempts at identification of an ideal prognostic/predictive biomarker in phyllodes tumour (PT) have not been fruitful so far. Studies evaluating c-kit expression in PT have shown contradictory results. Recently aldehyde dehydrogenase 1A1 (ALDH1A1) was proposed as a stem cell marker for malignant PT but its expression has not been studied in benign and borderline tumours. We aimed to evaluate expression and prognostic significance of c-kit and ALDH1A1 in different grades of PT. Epithelial and stromal c-kit and ALDH1A1 expression were studied in 104 PT cases (86 primary and 18 recurrent tumours) and compared with different clinico-pathological features and recurrence rates...
September 30, 2016: Virchows Archiv: An International Journal of Pathology
Zandra C Deans, Jose Luis Costa, Ian Cree, Els Dequeker, Anders Edsjö, Shirley Henderson, Michael Hummel, Marjolijn Jl Ligtenberg, Marco Loddo, Jose Carlos Machado, Antonio Marchetti, Katherine Marquis, Joanne Mason, Nicola Normanno, Etienne Rouleau, Ed Schuuring, Keeda-Marie Snelson, Erik Thunnissen, Bastiaan Tops, Gareth Williams, Han van Krieken, Jacqueline A Hall
The clinical demand for mutation detection within multiple genes from a single tumour sample requires molecular diagnostic laboratories to develop rapid, high-throughput, highly sensitive, accurate and parallel testing within tight budget constraints. To meet this demand, many laboratories employ next-generation sequencing (NGS) based on small amplicons. Building on existing publications and general guidance for the clinical use of NGS and learnings from germline testing, the following guidelines establish consensus standards for somatic diagnostic testing, specifically for identifying and reporting mutations in solid tumours...
September 27, 2016: Virchows Archiv: An International Journal of Pathology
Charles Bechert, Jee-Yeon Kim, Trine Tramm, Fattaneh A Tavassoli
In the USA alone, approximately 61,000 new diagnoses of ductal intraepithelial neoplasia 1c-3 (DIN) are made each year. Around 10-20 % of the patients develop a recurrence, about 50 % of which are invasive. Prior studies have shown that invasive breast carcinomas positive for p16 or p53 have a higher frequency of recurrence and a more aggressive course; however, the co-expression of these markers across the entire spectrum of DIN and its potential correlation with grade of the lesions has not been studied previously...
September 23, 2016: Virchows Archiv: An International Journal of Pathology
M de Ridder, C C M Marres, L E Smeele, M W M van den Brekel, M Hauptmann, A J M Balm, M L F van Velthuysen
In head and neck squamous cell carcinoma (HNSCC), the search for better prognostic factors beyond TNM-stage is ongoing. Lymph node ratio (LNR) (positive lymph nodes/total lymph nodes) is gaining interest in view of its potential prognostic significance. All HNSCC patients at the Netherlands Cancer Institute undergoing neck dissection for lymph node metastases in the neck region between 2002 and 2012 (n = 176) were included. Based on a protocol change in specimen processing, the cohort was subdivided in two distinct consecutive periods (pre and post 2007)...
September 18, 2016: Virchows Archiv: An International Journal of Pathology
Maria Pané Foix, Ana Dunatov, Petr Martinek, Enric Condom Mundó, Saul Suster, Maris Sperga, Jose I Lopez, Monika Ulamec, Stela Bulimbasic, Delia Perez Montiel, Reza Alaghehbandan, Kvetoslava Peckova, Krystina Pivovarcikova, Daum Ondrej, Pavla Rotterova, Faruk Skenderi, Kristyna Prochazkova, Martin Dusek, Milan Hora, Michal Michal, Ondrej Hes
Chromophobe renal cell carcinoma (ChRCC) is typically composed of large leaf-like cells and smaller eosinophilic cells arranged in a solid-alveolar pattern. Eosinophilic, adenomatoid/pigmented, or neuroendocrine variants have also been described. We collected 10 cases of ChRCC with a distinct multicystic pattern out of 733 ChRCCs from our registry, and subsequently analyzed these by morphology, immunohistochemistry, and array comparative genomic hybridization. Of the 10 patients, 6 were males with an age range of 50-89 years (mean 68, median 69)...
September 15, 2016: Virchows Archiv: An International Journal of Pathology
María Jesús Fernández-Aceñero, Sofía Torres, Irene Garcia-Palmero, Cristina Díaz Del Arco, J Ignacio Casal
Tissue transglutaminase 2 (TG2) is involved in many biological processes, from wound healing to neurodegeneration. Recently, there has been an increasing interest in this enzyme as a potential prognostic marker or therapy target in human neoplasms. The aim of this study was to analyze expression of TG2 messenger RNA (mRNA) and protein in colon cancer samples and to evaluate the potential value of TG2 as prognostic marker. We investigated not only expression level but also location of the protein in a series of human tumors...
September 13, 2016: Virchows Archiv: An International Journal of Pathology
Sean S Q Ma, Claire E Henry, Estelle Llamosas, Rupert Higgins, Benjamin Daniels, Luke B Hesson, Nicholas J Hawkins, Robyn L Ward, Caroline E Ford
The Wnt signalling receptor receptor tyrosine kinase-like orphan receptor 2 (ROR2) is implicated in numerous human cancers. However, there have been conflicting reports regarding ROR2 expression, some studies showing upregulation and others downregulation of ROR2 in the same cancer type. The majority of these studies used immunohistochemistry (IHC) to detect ROR2 protein, without validation of the used antibodies. There appears to be currently no consensus on the antibody best suited for ROR2 detection or how ROR2 expression changes in various cancer types...
September 8, 2016: Virchows Archiv: An International Journal of Pathology
Henrik Hellquist, Alena Skalova, Bahram Azadeh
Salivary gland hybrid tumour, first described in 1996, is a very rare neoplasm for which exact morphological criteria have not been universally agreed upon. In contrast, the concept of high-grade transformation (HGT) in salivary neoplasms has been widely accepted during the last decade, and the number of reported cases is rapidly increasing. A review of the literature revealed 38 cases of hybrid tumour reported in 22 publications. During approximately the same time period, well over 100 cases of HGT in salivary neoplasms have been reported...
September 7, 2016: Virchows Archiv: An International Journal of Pathology
Deján Dobi, Zsolt Bodó, Éva Kemény, László Bidiga, Zoltán Hódi, Pál Szenohradszky, Edit Szederkényi, Anikó Szilvási, Béla Iványi
The ultrastructural quantitative aspects of peritubular capillary basement membrane multilayering (PTCBML) were examined in 57 kidney transplant biopsies with transplant glomerulopathy (TG). The measurements included three cutoffs [permissive: 1 PTC with 5 basement membrane (BM) layers, intermediate: 3 PTCs with 5 layers or 1 PTC with 7 layers, strict: 1 PTC with 7 layers and 2 PTCs with 5 layers] and the mean number of BM layers (PTCcirc). Two groups were assigned, namely patients with mild TG (Banff cg1a and cg1b) and those with moderate-to-severe TG (cg2 and cg3)...
September 7, 2016: Virchows Archiv: An International Journal of Pathology
Mathieu Gallo, Valère Cacheux, Laure Vincent, Caroline Bret, Ariane Tempier, Caroline Guittard, Alexandra Macé, Nicolas Leventoux, Valérie Costes, Vanessa Szablewski
Leukemic non-nodal mantle cell lymphoma (lMCL) is a particular subtype of mantle cell lymphoma (MCL), characterized by leukemic non-nodal disease and slow progression. Recognition of this entity is relevant to avoid overtreatment. Despite indolent clinical behaviour, lMCL might transform to a more aggressive disease. The purpose of this study was to compare lMCL with classical MCL (cMCL) and aggressive MCL (aMCL) using immunohistochemistry, interphase fluorescence in situ hybridization (FISH), and array-based comparative genomic hybridization, in order to identify biomarkers for lMCL diagnosis and prognosis...
September 7, 2016: Virchows Archiv: An International Journal of Pathology
Keiichiro Fujii, Ken-Ichiro Ishibashi, Junki Kato, Jushin Kan, Kana Fujii, Yohei Ito, Hisashi Takino, Ayako Masaki, Takayuki Murase, Hiroshi Inagaki
Mucosa-associated lymphoid tissue (MALT) lymphoma mainly consists of three types of tumor B cells, small (centrocyte-like), scattered large transformed, and intraepithelial. However, it is difficult to differentiate tumor B cells from reactive B cells at the cellular level. We examined five cases of API2-MALT1 fusion-positive MALT lymphoma of the lung. A single paraffin section for each case was subjected to sequential retrieval of whole-slide imaging (WSI) data of hematoxylin and eosin (HE) staining, immunofluorescence staining for CD79a, and fluorescence in situ hybridization (FISH) for the MALT1 split...
September 6, 2016: Virchows Archiv: An International Journal of Pathology
Wook Youn Kim, Ho Young Jung, Soo Jeong Nam, Tae Min Kim, Dae Seog Heo, Chul-Woo Kim, Yoon Kyung Jeon
Programmed cell death 1 (PD-1)/PD-1 ligand 1 (PD-L1) pathway blockade has emerged as a promising strategy for cancer therapy. Extranodal natural killer/T cell lymphoma (ENKTL) is an aggressive disease characterized by a strong association with Epstein-Barr virus (EBV), and chronic EBV infection is known to induce PD-L1 expression. However, the PD-1/PD-L1 pathway status in ENKTL remains elusive. Thus, the expression pattern of PD-1 and PD-L1 was investigated in 73 ENKTL cases, and its clinicopathological features and prognostic significance were analyzed...
September 5, 2016: Virchows Archiv: An International Journal of Pathology
Sumihito Nobusawa, Satoshi Nakata, Junko Hirato, Takahiro Kawashima, Koji Sato, Hiroya Fujimaki, Naoki Okura, Hayato Ikota, Hideaki Yokoo
No abstract text is available yet for this article.
September 5, 2016: Virchows Archiv: An International Journal of Pathology
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