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Histopathology

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https://www.readbyqxmd.com/read/28231401/reappraisal-of-ebv-in-diffuse-large-b-cell-lymphoma-dlbcl-comparative-analysis-between-ebv-positive-and-negative-dlbcl-with-ebv-positive-bystander-cells
#1
Akiko Ohashi, Seiichi Kato, Akinao Okamoto, Yoko Inaguma, Akira Satou, Toyonori Tsuzuki, Nobuhiko Emi, Masataka Okamoto, Shigeo Nakamura
AIMS: Epstein-Barr virus (EBV)-positive diffuse large B-cell lymphoma (DLBCL), not otherwise specified (NOS) is defined as monoclonal EBV(+) B-cell proliferation affecting patients without any known immunosuppression. Non-neoplastic EBV(+) cells proliferating in or adjacent to EBV(-) DLBCL were reported recently, but their clinical significance is unclear. Thus, we investigated the prognostic impact of EBV(+) cells in DLBCL. METHODS AND RESULTS: We compared the clinico-pathological characteristics of 30 EBV(+) DLBCL patients and 29 and 604 EBV(-) DLBCL patients with and without EBV(+) bystander cells (median age of onset 71, 67, and 62 years, respectively)...
February 23, 2017: Histopathology
https://www.readbyqxmd.com/read/28231386/evaluating-the-effectiveness-of-rna-in-situ-hybridization-for-detecting-lung-adenocarcinoma-with-anaplastic-lymphoma-kinase-rearrangement
#2
Naoki Nakajima, Akihiko Yoshizawa, Kyoko Kondo, Mariyo Rokutan-Kurata, Masahiro Hirata, Ayako Furuhata, Shinji Sumiyoshi, Makoto Sonobe, Toshi Menju, Masanobu Momose, Masakazu Fujimoto, Hiroshi Date, Hironori Haga
AIMS: An easy and rapid assay for detecting mRNA in formalin-fixed paraffin-embedded samples (RNA-in situ hybridization; RNA-ISH) has been reported recently. We investigated the diagnostic accuracy of RNA-ISH for detecting lung adenocarcinoma (LA) with anaplastic lymphoma kinase (ALK) gene rearrangement. METHODS AND RESULTS: We tested ALK RNA-ISH on 11 resected LAs for which ALK fusion was confirmed by immunohistochemistry (IHC) and/or fluorescence in situ hybridization (FISH)...
February 23, 2017: Histopathology
https://www.readbyqxmd.com/read/28226191/in-reply-to-hynes-s-o-et%C3%A2-al-back-to-the-future-routine-morphological-assessment-of-the-tumour-microenvironment-is-prognostic-in-stage-ii-iii-colon-cancer-in-a-large-population-based-study
#3
LETTER
James Hugh Park, Campbell S Roxburgh, Joanne Edwards, Paul G Horgan, Donald C McMillan
We read with interest the recent study by Hynes et al (1) . In this study of 445 patients undergoing surgical resection of stage II/III colon cancer, the presence of a conspicuous peritumoural inflammatory cell infiltrate, as measured by the Crohn's like reaction (CLR) and a modification of the Klintrup-Mäkinen grade (examining only the lymphoid cell population), was associated with improved prognosis. A high proportion of tumour-associated stroma, as measured by a 'global' assessment of the tumour stroma percentage (TSP) but not 'focal' assessment, was also associated with poorer survival...
February 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28226185/p53-protein-accumulation-predicts-malignant-progression-in-barrett-s-metaplasia-a-prospective-study-of-275-patients
#4
Mamoun Younes, Keith Brown, Gregory Y Lauwers, Gulchin Ergun, Frank Meriano, A Carl Schmulen, Alberto Barroso, Atilla Ertan
AIMS: The purpose of this study was to determine prospectively whether p53 protein accumulation in biopsies of Barrett's metaplasia (BM) is a predictor of malignant progression, without relying on dysplasia grading. METHODS AND RESULTS: Sections of formalin fixed paraffin embedded tissue from the initial biopsies of 275 patients with BM, who had no high grade dysplasia (HGD) or esophageal adenocarcinoma (EAC), were stained for p53 by immunohistochemistry. Mean follow up was 41 months...
February 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28226184/cd117-kit-is-a-useful-marker-in-the-diagnosis-of-plasmablastic-plasma-cell-myeloma
#5
Etan Marks, Yang Shi, Yanhua Wang
AIMS: Plasmablastic plasma cell myeloma (PPCM) is a rare morphological presentation of multiple myeloma and can resemble plasmablastic lymphoma (PBL), an HIV related lymphoid neoplasm, morphologically and immunophenotypically. We retrospectively searched for factors that could help differentiate these two entities. METHODS: We used Clinical Looking Glass (CLG), a data mining tool, to identify patients with a diagnosis of either PPCM or PBL with a CD117 test performed...
February 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28226180/a33-shows-similar-sensitivity-to-but-is-more-specific-than-cdx2-as-an-immunomarker-of-colorectal-carcinoma
#6
Newton A C S Wong, Lukasz A Adamczyk, Shanna Evans, Jayne Cullen, Anca Oniscu, Karin A Oien
AIMS: CDX2 is widely used as a sensitive and specific immunomarker for colorectal carcinoma (CRC) but neither this sensitivity nor specificity is absolute. This study is the first known comparison of CDX1 and A33 against CDX2 as immunomarkers for CRC. METHODS AND RESULTS: As a pilot study, whole sections of 51 cases of liver metastatic carcinoma of different origins - colorectum (n=32), breast (n=3), oesophagogastric tract (n=4), lung (n=3), pancreas (n=8), and prostate (n=1) - were immunostained with CDX1, CDX2 and A33...
February 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28211946/extra-ampullary-duodenal-adenoma-a-clinicopathological-study
#7
Kazunori Hijikata, Tetsuo Nemoto, Yoshinori Igarashi, Kazutoshi Shibuya
AIM: Extra-ampullary duodenal adenoma (EADA) is a rare condition with poorly described clinicopathological details. In this study, we aimed to clinicopathologically characterize EADA. METHODS AND RESULTS: We performed a retrospective review of 44 serial cases of EADA. Each EADA was categorized as either gastric-type (n=5) or intestinal-type (n=39). All gastric-type adenomas were located in the first portion of the duodenum and exhibited a pedunculated shape. Gastric-type adenomas were classified into two subtypes: a pyloric gland type and a foveolar type...
February 17, 2017: Histopathology
https://www.readbyqxmd.com/read/28211082/prognostic-role-of-maspin-expression-in-melanoma-probably-far-from-clinical-use
#8
LETTER
Simone Ribero, Rebecca Senetta, Simona Osella-Abate, Maria Stella Scalzo, Isabella Castellano, Federica Lentini, Angela Pamela Baboi, Maria Teresa Fierro, Anna Sapino, Paola Cassoni
Maspin, a member of the serpin superfamily, is a double-face gene enacting different activities in cancer. Several studies support that in melanoma maspin loss could contribute to disease progression and metastatic dissemination, sustaining its putative tumour-suppressor role; others did not confirm these observations[1-5]. Also, the maspin subcellular localization in immunohistochemistry (nuclear vs. cytoplasm) has been related to divergent effects, such as tumor promotion or inhibition[5]. This article is protected by copyright...
February 17, 2017: Histopathology
https://www.readbyqxmd.com/read/28211081/h3f3a-mutation-in-giant-cell-tumour-of-the-bone-is-detected-by-immunohistochemistry-using-a-monoclonal-antibody-against-the-g34w-mutated-site-of-the-histone-h3-3-variant
#9
Julian Lüke, Alexandra von Baer, Jordan Schreiber, Christoph Lübbehüsen, Thomas Breining, Kevin Mellert, Ralf Marienfeld, Markus Schultheiss, Peter Möller, Thomas Fe Barth
AIMS: Giant cell tumour of bone (GCTB) is a neoplasm predominantly of long bones characterised by the H3F3A mutation G34W. Conventional diagnostic is challenged by the tumour's giant cell-rich morphology, which overlaps with other giant cell containing lesions of the bone. Recently, a monoclonal antibody specific for the H3F3A mutation has been generated. Our aim was to test this antibody on a cohort of giant cell containing lesions. METHODS AND RESULTS: We used the antibody for analysis of 22 H3F3A-mutated GCTB, including two patients with recurrences; for comparison we analysed a cohort of 36 H3F3A-wild-type giant cell-rich lesions of the bone and soft tissue, containing one brown tumour, six aneurysmal bone cysts, six chondroblastomas, five non-ossifying-fibromas, two fibrous dysplasias, nine tenosynovial giant cell tumours, one giant cell-rich sarcoma and six osteosarcomas...
February 17, 2017: Histopathology
https://www.readbyqxmd.com/read/28211079/gata3-expression-in-triple-negative-breast-cancers
#10
David J Byrne, Siddhartha Deb, Elena A Takano, Stephen B Fox
AIMS: GATA-binding protein 3 (GATA3) is a well-studied transcription factor found to be essential in the development of luminal breast epithelium and has been identified in a variety of tumour types including breast and urotheilial carcinomas making it a useful immunohistochemistry marker in the diagnosis of both primary and metastatic disease. METHODS AND RESULTS: We investigated GATA3 protein expression in a 106 primary triple negative breast carcinomas (100 basal-like, 6 non-basal-like) using Cell Marque mouse monoclonal anti-GATA3 (L50-823)...
February 17, 2017: Histopathology
https://www.readbyqxmd.com/read/28208230/emerging-role-of-gsk-3%C3%AE-in-the-pathobiology-of-classical-hodgkin-lymphoma
#11
Claudio Agostinelli, Silvia Carloni, Francesco Limarzi, Simona Righi, Maria Antonella Laginestra, Gerardo Musuraca, Michelangelo Fiorentino, Roberta Napolitano, Antonio Cuneo, Daniele Vergara, Pier Luigi Zinzani, Sabattini Elena, Stefano A Pileri, Serena De Matteis
AIMS: GSK-3β is a serine/threonine kinase involved in glycogen metabolism, cell cycle progression, differentiation, embryogenesis, migration, metabolism, survival and cellular senescence. Its main biological function is to inhibit β-catenin by sequestration and promotion of its proteasomal degradation in the Wnt canonical pathway, however GSK-3β interacts with multiple signaling pathways and aberrant expression of the enzyme was reported in many solid neoplasms. This study aimed to investigate the biological relevance of GSK-3β in classical Hodgkin Lymphomas (cHL)...
February 16, 2017: Histopathology
https://www.readbyqxmd.com/read/28207938/comparison-of-clinical-and-pathological-features-of-lung-lesions-of-systemic-igg4-related-disease-and-idiopathic-multicentric-castleman-s-disease
#12
Yasuhiro Terasaki, Shinichro Ikushima, Shoko Matsui, Akira Hebisawa, Yasunori Ichimura, Shinyu Izumi, Masuo Ujita, Machiko Arita, Keisuke Tomii, Youko Komase, Isoko Owan, Tetsuji Kawamura, Yasuo Matsuzawa, Miho Murakami, Hiroshi Ishimoto, Hiroshi Kimura, Masashi Bando, Norihiro Nishimoto, Yoshinori Kawabata, Yuh Fukuda, Takashi Ogura
AIMS: The lung lesion (IgG4-L) of IgG4-related disease (IgG4-RD) is a condition that occurs together with IgG4-RD and often mimics the lung lesion (iMCD-L) of idiopathic multicentric Castleman's disease (iMCD). Because no clinical and pathological studies had previously compared features of these diseases, we undertook this comparison with clinical and histological data. METHODS AND RESULTS: Nine patients had IgG4-L (high levels of serum IgG4 and of IgG4(+) cells in lung specimens; typical extrapulmonary manifestations)...
February 16, 2017: Histopathology
https://www.readbyqxmd.com/read/28199742/genetic-analysis-and-clinicopathological-features-of-alk-rearranged-renal-cell-carcinoma-in-a-large-series-of-resected-chinese-renal-cell-carcinoma-patients-and-literature-review
#13
Wenjuan Yu, Yuewei Wang, Yanxia Jiang, Wei Zhang, Yujun Li
AIMS: Anaplastic lymphoma kinase (ALK)-rearranged renal cell carcinoma (RCC) is a rare subtype of RCC reported in recent years with 8 cases so far. The present study is focused on screening ALK-rearranged cases from a large cohort of RCCs in China to determine the frequency of ALK rearrangement and investigate the clinicopathological features and outcomes. METHODS AND RESULTS: Tissues from a total of 477 RCC patients in China were embedded into tissue microarrays for immunostaining...
February 15, 2017: Histopathology
https://www.readbyqxmd.com/read/28178752/prognostic-significance-of-cd9-expression-differs-between-tumor-cells-and-stromal-immune-cells-and-depends-on-the-molecular-subtype-of-the-invasive-breast-carcinoma
#14
Hee Jung Kwon, Jung Eun Choi, Su Hwan Kang, Youlim Son, Young Kyung Bae
AIMS: CD9, a tetraspanin transmembrane protein, modulates cell motility, migration, and proliferation. We investigated the prognostic significance of CD9 expression in patients with invasive breast carcinoma (IBC). METHODS AND RESULTS: CD9 expression was evaluated in tissue microarrays of 1349 IBC samples via immunohistochemistry. CD9 expression in tumor cells (T-CD9) and stromal immune cells (S-CD9) were analyzed separately. T-CD9 expression was observed in 732 (54...
February 8, 2017: Histopathology
https://www.readbyqxmd.com/read/28168725/desmin-positive-anaplastic-plasmacytoma-involving-the-nasopharynx
#15
LETTER
Maiko Takeda, Hirokazu Nakamine, Kinta Hatakeyama, Tokiko Nakai, Masato Takano, Hiroe Itami, Tomoko Uchiyama, Hideyuki Okamoto, Atsushi Hasegawa, Itsuto Amano, Chiho Ohbayashi
Extramedullary plasmacytoma, a rare neoplasm especially after general acceptance of extranodal marginal zone lymphoma, often involves head and neck regions with approximately 20% of the cases in the nasopharynx. We recently experienced a patient with anaplastic plasmacytoma developed in the above site and found that the neoplastic plasma cell were clearly positive for desmin during a process of differential diagnosis by immunohistochemistry (IHC) using a panel of antibodies We report here this case, because desmin-positive lymphoma or plasmacytoma has not been reported to our knowledge...
February 6, 2017: Histopathology
https://www.readbyqxmd.com/read/28165633/back-to-the-future-routine-morphological-assessment-of-the-tumour-microenvironment-is-prognostic-in-stage-ii-iii-colon-cancer-in-a-large-population-based-study
#16
Seán O Hynes, Helen G Coleman, Paul J Kelly, Steven Irwin, Roisin F O'Neill, Ronan T Gray, Claire McGready, Philip D Dunne, Stephen McQuaid, Jacqueline A James, Manuel Salto-Tellez, Maurice B Loughrey
AIMS: Both morphological and molecular approaches have highlighted the biological and prognostic importance of the tumour microenvironment in colorectal cancer (CRC). Despite this, microscopic assessment of tumour microenvironment has not been adopted into routine practice. METHODS AND RESULTS: Based on existing evidence, we selected specific morphological features relating to peritumoral inflammatory and stromal responses, agreed criteria for scoring, and assessed these in representative H&E-stained whole tumour sections, from a population-based cohort of 445 stage II/III colon cancer cases...
February 6, 2017: Histopathology
https://www.readbyqxmd.com/read/28165631/a-distinctive-low-grade-oncocytic-fumarate-hydratase-deficient-renal-cell-carcinoma-morphologically-reminiscent-of-sdh-deficient-renal-cell-carcinoma
#17
Steven C Smith, Deepika Sirohi, Chisato Ohe, Jonathan B McHugh, Jason L Hornick, Jigna Kalariya, Sushil Karia, Katie Snape, Shirley V Hodgson, Andi K Cani, Daniel Hovelson, Daniel J Luthringer, Guido Martignoni, Ying-Bei Chen, Scott A Tomlins, Rohit Mehra, Mahul B Amin
AIMS: Fumarate hydratase-deficient renal cell carcinoma (FH-deficient RCC) is a high grade, aggressive tubulopapillary carcinoma, arising predominantly in the setting of the hereditary leiomyomatosis-renal cell carcinoma syndrome of familial uterocutaneous leiomyomatosis and deficiency of fumarate hydratase. In contrast, succinate dehydrogenase (SDH)-deficient RCC is a lower grade oncocytic carcinoma with cytoplasmic flocculence/vacuolation and inclusions, arising mostly in individuals harboring germline mutations of subunit B of the SDH complex (SDHB)...
February 6, 2017: Histopathology
https://www.readbyqxmd.com/read/28164369/gnas-mutations-are-present-in-colorectal-traditional-serrated-adenomas-serrated-tubulovillous-adenomas-and-serrated-adenocarcinomas-with-adverse-prognostic-features
#18
Cheng Liu, Diane M McKeone, Neal I Walker, Mark L Bettington, Barbara A Leggett, Vicki L J Whitehall
: Activating mutations in GNAS are important in the development of a range of neoplasms including a small proportion of conventional adenomas and colorectal carcinomas (CRCs). However, their contribution to serrated pathway neoplasia is unclear as mutations have only been examined in small series of sessile serrated adenomas (SSAs) and traditional serrated adenomas (TSAs), and not in serrated tubulovillous adenomas (sTVAs). AIMS: To investigate the frequency and significance of GNAS mutations in colorectal adenomas and CRCs...
February 6, 2017: Histopathology
https://www.readbyqxmd.com/read/28134986/lanthanum-deposition-from-oral-lanthanum-carbonate-in-the-upper-gastrointestinal-tract
#19
Raza S Hoda, Soma Sanyal, Jerrold L Abraham, Jamie M Everett, Gregory L Hundemer, Eric Yee, Gregory Y Lauwers, Nina Tolkoff-Rubin, Joseph Misdraji
AIMS: Lanthanum carbonate is used an alternative to calcium-based phosphate binders to manage hyperphosphatemia in patients with renal failure. The deposition of lanthanum within gastroduodenal mucosa of patients treated with the medication has been described, but given the relative novelty of this entity, the histiocytic deposits in the gastroduodenal mucosa can be confused with a variety of other processes, including infections and other drug-induced forms of injury. METHODS AND RESULTS: We describe 5 cases of lanthanum phosphate deposition in upper gastrointestinal tract biopsies...
January 30, 2017: Histopathology
https://www.readbyqxmd.com/read/28130841/dmbt1-expression-in-biliary-carcinogenesis-with-correlation-of-clinicopathological-data
#20
Benjamin Goeppert, Stephanie Roessler, Natalia Becker, Manuela Zucknick, Monika Nadja Vogel, Arne Warth, Anita Pathil-Warth, Arianeb Mehrabi, Peter Schirmacher, Jan Mollenhauer, Marcus Renner
AIMS: Deleted in Malignant Brain Tumors 1 (DMBT1) exerts functions in the regulation of epithelial differentiation and inflammation and has been proposed as tumor suppressor. Since chronic inflammation is a hallmark of cholangiocarcinogenesis, the aim of the study was to investigate the expression of DMBT1 in biliary tract cancer (BTC) and to correlate the expression with clinicopathological data. METHODS AND RESULTS: The expression of DMBT1 protein was examined immunohistochemically in 157 BTC patients (41 intrahepatic (ICC), 60 extrahepatic cholangiocarcinomas (ECC), and 56 adenocarcinomas of the gallbladder (GBAC))...
January 28, 2017: Histopathology
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