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Diagnostic Pathology

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https://www.readbyqxmd.com/read/28810922/pleural-epithelioid-angiosarcoma-with-lymphatic-differentiation-arisen-after-radiometabolic-therapy-for-thyroid-carcinoma-immunohistochemical-findings-and-review-of-the-literature
#1
REVIEW
Daniela Cabibi, Giulia Pipitone, Rossana Porcasi, Sabrina Ingrao, Ignazio Benza, Calogero Porrello, Massimo Cajozzo, Antonino Giulio Giannone
BACKGROUND: Pleural angiosarcoma is a rare tumor that causes diffuse pleural thickening and effusion, mimicking mesothelioma. Immunohistochemistry is needed to highlight endothelial differentiation. We describe the first case of pleural angiosarcoma with lymphatic differentiation following radiometabolic therapy for thyroid carcinoma. CASE PRESENTATION: A 50-year-old man showed diffuse pleural thickening and effusion. Nine years earlier, he underwent thyroidectomy and radiometabolic therapy for thyroid carcinoma with lymph node metastases...
August 15, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28778176/localized-amyloidosis-of-the-epididymis-a-previously-unreported-phenomenon
#2
Lucio Díaz-Flores, Ricardo Gutiérrez, Ma Del Pino García, Manuel Jose Gayoso, Jose Luis Carrasco, Lucio Díaz-Flores, Hugo Álvarez-Argüelles
BACKGROUND: Localized amyloidosis has not been documented in the epididymis; we report this phenomenon for the first time. CASE PRESENTATION: The first aim of this work is to report three cases of localized epididymal amyloidosis. Two cases were clinically detected as epididymal nodules, and a third after reviewing 120 epididymides obtained with neighbouring pathological processes. Amyloid deposits showed Congo red positivity, with yellow-green birefringence, and immunohistochemical expression for light chains kappa and lambda, transthyretin, amyloid P and cytokeratin AE1 AE3...
August 4, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28778171/gene-expression-profiling-in-uveal-melanoma-technical-reliability-and-correlation-of-molecular-class-with-pathologic-characteristics
#3
Kristen M Plasseraud, Jeff K Wilkinson, Kristen M Oelschlager, Trisha M Poteet, Robert W Cook, John F Stone, Federico A Monzon
BACKGROUND: A 15-gene expression profile test has been clinically validated and is widely utilized in newly diagnosed uveal melanoma (UM) patients to assess metastatic potential of the tumor. As most patients are treated with eye-sparing radiotherapy, there is limited tumor tissue available for testing, and technical reliability and success of prognostic testing are critical. This study assessed the analytical performance of the 15-gene expression test for UM and the correlation of molecular class with pathologic characteristics...
August 4, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28764742/pancreatic-gangliocytic-paraganglioma-harboring-lymph-node-metastasis-a-case-report-and-literature-review
#4
Keisuke Nonaka, Yoko Matsuda, Akira Okaniwa, Atsuko Kasajima, Hironobu Sasano, Tomio Arai
BACKGROUND: Gangliocytic paraganglioma (GP) is a rare neuroendocrine neoplasm, which occurs mostly in the periampullary portion of the duodenum; the majority of the reported cases of duodenal GP has been of benign nature with a low incidence of regional lymph node metastasis. GP arising from the pancreas is extremely rare. To date, only three cases have been reported and its clinical characteristics are largely unknown. CASE PRESENTATION: A nodule located in the pancreatic head was incidentally detected in an asymptomatic 68-year-old woman...
August 2, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28764740/variation-of-stemness-markers-expression-in-tumor-nodules-from-synchronous-multi-focal-hepatocellular-carcinoma-an-immunohistochemical-study
#5
Regina Cheuk-Lam Lo, Carmen Oi-Ning Leung, Kenneth Siu-Ho Chok, Irene Oi-Lin Ng
BACKGROUND: Advancing knowledge in molecular pathogenesis of hepatocellular carcinoma (HCC) opens up new horizons in the diagnostic, prognostic and therapeutic perspectives. Assessing the expression of molecular targets prior to definitive treatment is gaining importance in clinical practice. In this study, we investigated the variation in expression pattern of stemness markers in synchronous multi-focal HCC. METHODS: In the first cohort, 21 liver explants with multi-focal HCC were examined for expression of stemness markers EpCAM, Sox9 and CK19 by immunohistochemistry (IHC)...
August 1, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28743306/detection-of-22-common-leukemic-fusion-genes-using-a-single-step-multiplex-qrt-pcr-based-assay
#6
Xiaodong Lyu, Xianwei Wang, Lina Zhang, Zhenzhu Chen, Yu Zhao, Jieying Hu, Ruihua Fan, Yongping Song
BACKGROUND: Fusion genes generated from chromosomal translocation play an important role in hematological malignancies. Detection of fusion genes currently employ use of either conventional RT-PCR methods or fluorescent in situ hybridization (FISH), where both methods involve tedious methodologies and require prior characterization of chromosomal translocation events as determined by cytogenetic analysis. In this study, we describe a real-time quantitative reverse transcription PCR (qRT-PCR)-based multi-fusion gene screening method with the capacity to detect 22 fusion genes commonly found in leukemia...
July 25, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28738880/level-of-mitoses-in-non-muscle-invasive-papillary-urothelial-carcinomas-pta-and-pt1-at-initial-bladder-biopsy-is-a-simple-and-powerful-predictor-of-clinical-outcome-a-multi-center-study-in-south-korea
#7
Ji Eun Kwon, Nam Hoon Cho, Yeong-Jin Choi, So Dug Lim, Yong Mee Cho, Sun Young Jun, Sanghui Park, Young A Kim, Sung-Sun Kim, Mi Sun Choe, Jung-Dong Lee, Dae Yong Kang, Jae Y Ro, Hyun-Jung Kim
BACKGROUND: Histologic grade is the most important predictor of the clinical outcome of non-muscle invasive (Ta, T1) papillary urothelial carcinoma (NMIPUCa), but its ambiguous criteria diminish its power to predict recurrence/progression for individual patients. We attempted to find an objective and reproducible histologic predictor of NMIPUCa that correlates well with the clinical outcome. METHODS: A total of 296 PUCas were collected from the Departments of Surgical Pathology of 11 institutions in South Korea...
July 24, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28720116/retraction-note-the-microrna-1246-promotes-metastasis-in-non-small-cell-lung-cancer-by-targeting-cytoplasmic-polyadenylation-element-binding-protein
#8
Weihua Huang, Huifen Li, Rongcheng Luo
No abstract text is available yet for this article.
July 18, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28693516/pancreatic-metastasis-from-invasive-pleomorphic-lobular-carcinoma-of-the-breast-a-rare-case-report
#9
Xiangjie Sun, Ke Zuo, Dan Huang, Baohua Yu, Yufan Cheng, Wentao Yang
BACKGROUND: Invasive pleomorphic lobular carcinoma (PLC) is an aggressive subtype of invasive lobular carcinoma of the breast, which has its own histopathological and biological features. The metastatic patterns for PLC are distinct from those of invasive ductal carcinoma. In addition, pancreatic metastasis from PLC is extremely rare. CASE PRESENTATION: We report a rare case of a 48-year-old woman presenting with clinical gastrointestinal symptoms and pancreatic metastasis of PLC...
July 11, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28693610/gata3-is-a-sensitive-marker-for-primary-genital-extramammary-paget-disease-an-immunohistochemical-study-of-72-cases-with-comparison-to-gross-cystic-disease-fluid-protein-15
#10
Ming Zhao, Lixin Zhou, Li Sun, Yan Song, Yunquan Guo, Xun Zhang, Feng Zhao, Peng Wang, Junqiu Yue, Dongfeng Niu, Zhongwu Li, Xiaozheng Huang, Qiang Kang, Lin Jia, Jinping Lai, Dengfeng Cao
BACKGROUND: GATA-binding protein 3 (GATA3) has been identified as a sensitive marker for breast carcinoma but its sensitivity in primary genital extramammary Paget diseases (EMPDs) has not been well studied. METHODS: Here we investigated immunohistochemical expression of GATA3 in 72 primary genital EMPDs (35 from female, 37 from male; 45 with intraepithelial disease only, 26 with both intraepithelial disease and invasive adenocarcinoma including 14 also metastasis, 1 with metastatic adenocarcinoma only for study)...
July 10, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28687087/a-rare-case-of-malignant-solitary-fibrous-tumor-in-prostate-with-review-of-the-literature
#11
Andrea Ronchi, Elvira La Mantia, Vincenzo Gigantino, Sisto Perdonà, Marco De Sio, Gaetano Facchini, Renato Franco, Annarosaria De Chiara
BACKGROUND: Solitary fibrous tumor is an uncommon soft tissue neoplasm with intermediate biological behavior, which rarely metastasizes. Malignant solitary fibrous tumor, although not clearly defined, is rarely described in the prostate. The present case is characterized by some peculiarities if compared with previously reported cases of prostatic malignant solitary fibrous tumor. Firstly, it does not show a homogeneous morphology: part of the neoplasm (about 50%) showed the features of a conventional solitary fibrous tumor, while the remaining part showed the features of a malignant solitary fibrous tumor...
July 7, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28679437/individual-and-co-expression-patterns-of-nerve-growth-factor-and-heme-oxygenase-1-predict-shorter-survival-of-gastric-carcinoma-patients
#12
Sang Jae Noh, Kyoung Min Kim, Kyu Yun Jang
BACKGROUND: Nerve growth factor (NGF) is a neurotrophic factor which regulates cell development and proliferation. Recently, it has been suggested that NGF induces heme oxygenase-1 (HO1) expression, and that both NGF and HO1 are involved in the progression of malignant human tumors. However, exact roles of NGF and HO1 in tumorigenesis remain controversial. Therefore, we investigated the expression and correlation of NGF and HO1 in human gastric carcinoma tissues. METHODS: We examined immunohistochemical expression of NGF and HO1 in 167 gastric carcinomas and compared with various prognostic clinicopathological factors...
July 5, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28679403/identification-and-in-silico-characterization-of-p-g380r-substitution-in-fgfr3-associated-with-achondroplasia-in-a-non-consanguineous-pakistani-family
#13
Muhammad Ajmal, Asif Mir, Muhammad Shoaib, Salman Akbar Malik, Muhammad Nasir
BACKGROUND: The dimerization efficiency of FGFR3 transmembrane domain plays a critical role in the formation of a normal skeleton through the negative regulation of bone development. Recently, gain-of-function mutations in the transmembrane domain of FGFR3 has been described associated with an aberrant negative regulation, leading to the development of achondroplasia-group disorders, including achondroplasia (ACH), hypochondroplasia (HCH) and thanatophoric dysplasia (TD). Here, we describe a non-consanguineous Pakistani family with achondroplasia to explain hereditary basis of the disease...
July 5, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28679401/heterotopic-pancreas-in-the-omphalomesenteric-duct-remnant-in-a-9-month-old-girl-a-case-report-and-literature-review
#14
Zitong Zhao, Chiang Khi Sim, Sangeeta Mantoo
BACKGROUND: Heterotopic pancreas most commonly occurs in the upper gastrointestinal tract of adults, usually as an incidental finding. It seldom occurs at the umbilicus, and even rarely in the pediatric age group. CASE PRESENTATION: Here we present a case of heterotopic pancreatic tissue in the omphalomesenteric duct remnant of a 9-month-old baby girl. She presented with redness at the base of the umbilicus associated with occasional mild wetness. A urachal fistula was suspected by ultrasound...
July 5, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28623913/aggressive-natural-killer-cell-leukemia-or-extranodal-nk-t-cell-lymphoma-a-case-with-nasal-involvement
#15
Xiaoke Jin, Youhai Xu, Jun Zhang, Guangxi Li, Dongping Huang, Yuqiong Yang, Hesheng He
BACKGROUND: Aggressive natural killer cell leukemia/lymphoma (ANKL) is a rare and highly aggressive NK cell neoplasm with a short clinical course and poor prognosis and is often misdiagnosed and confused with NK/T cell lymphoma (NKTL), which has a very different prognosis. Here, we present a case with nasal and bone marrow involvement, provide a literature review and make a differential diagnosis. CASE PRESENTATION: A 41-year-old male presented nasal congestion pharyngalgia, palatal perforation, high fever and multiorgan dysfunction...
June 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28623908/programmed-death-ligand-1-pd-l1-is-expressed-in-a-significant-number-of-the-uterine-cervical-carcinomas
#16
Opal L Reddy, Peter I Shintaku, Neda A Moatamed
BACKGROUND: The programmed death-1/programmed death-ligand-1 (PD-1/PD-L1) immune regulatory axis has emerged as a promising new target for cancer therapeutics, with lasting responses seen in the treatment of metastatic renal and lung carcinomas, as well as melanomas. As tumor surface expression of PD-L1 has been found to correlate with objective responses to anti-PD-L1 immunotherapies, we investigated the expression of PD-L1 in human cervical tumors and provide an adopted scoring system for the systematic evaluation of PD-L1 staining...
June 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28595632/a-comparison-of-gene-expression-profiles-in-patients-with-coronary-artery-disease-type-2-diabetes-and-their-coexisting-conditions
#17
Rui Gong, Menghui Chen, Cuizhao Zhang, Manli Chen, Haibin Li
BACKGROUND: To support a hypothesis that there is an intrinsic interplay between coronary artery disease (CAD) and type 2 diabetes (T2D), we used RNA-seq to identify unique gene expression signatures of CAD, T2D, and coexisting conditions. METHODS: After transcriptome sequencing, differential expression analysis was performed between each disordered state and normal control group. By comparing gene expression profiles of CAD, T2D, and coexisting conditions, common and specific patterns of each disordered state were displayed...
June 8, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28583188/hnf4a-expression-as-a-potential-diagnostic-tool-to-discriminate-primary-gastric-cancer-from-breast-cancer-metastasis-in-a-brazilian-cohort
#18
Patrícia Chaves de Freitas Campos Jucá, Stephany Corrêa, Giselle Maria Vignal, Maria Theresa de Souza Accioly, Suzana Angélica Silva Lustosa, Eliana Abdelhay, Delcio Matos
BACKGROUND: Among the many challenges in cancer diagnosis is the early distinction between metastatic cancer and a secondary tumor. This difficulty stems from the lack of markers that offer high sensitivity and specificity and can be easily applied in routine laboratory work. An example of this challenge is distinguishing gastric metastases originating from breast cancer from a gastric primary tumor. Hepatocyte nuclear factor 4 alpha (HNF4A) has been suggested as a potential marker in these cases...
June 5, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28558797/expression-of-signaling-adaptor-proteins-predicts-poor-prognosis-in-pancreatic-ductal-adenocarcinoma
#19
Lili Wang, Junliang Lu, Huanwen Wu, Li Wang, Xiaolong Liang, Zhiyong Liang, Tonghua Liu
BACKGROUND: Adaptor proteins bridge the gap between cell surface receptors and their downstream signaling elements. The clinicopathological and prognostic values of adaptor proteins remain poorly understood. The purpose of the present study was to explore the expression and prognostic value of three adaptor proteins: GRB2-associated binding protein 2 (GAB2), CRK-like protein (CRKL) and fibroblast growth factor receptor substrate 2 (FRS2) in pancreatic ductal adenocarcinoma (PDAC). METHODS: The expression of GAB2, CRKL, and FRS2 in 77 formalin fixed paraffin embedded (FFPE) samples from 77 PDAC patients, along with three paired fresh PDAC and matched normal tissues from 3 PDAC patients was analyzed by immunohistochemistry and western blot, respectively...
May 30, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28549444/tumor-containing-fragment-number-influences-immunohistochemistry-positive-rate-of-her2-in-biopsy-specimens-of-gastric-cancer
#20
Chen Xu, Yalan Liu, Xiaowen Ge, Dongxian Jiang, Ying Zhang, Yuan Ji, Jun Hou, Jie Huang, Jieakesu Su, Haiying Zeng, Jing Qin, Yingyong Hou
BACKGROUND: HER2 assessment in biopsy specimens of gastric cancer (GC) is challenging because of the intratumoral heterogeneity. False negative results may be get because of limited biopsy material. The aim of this study is to explore how tumor-containing fragment number and biopsy specimen number affect HER2 immunohistochemistry (IHC) positive rate. METHODS: Eight hundred and ninety biopsy specimens and 459 paired resected specimens were collected. IHC staining of HER2 was performed...
May 26, 2017: Diagnostic Pathology
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