keyword
MENU ▼
Read by QxMD icon Read
search

Immunophenotyping

keyword
https://www.readbyqxmd.com/read/29334244/evolving-concepts-and-use-of-immunohistochemical-biomarkers-in-flat-non-neoplastic-urothelial-lesions-who-2016-classification-update-with-diagnostic-algorithm
#1
Francesca Sanguedolce, Matteo Brunelli, Alessandro D'Amuri, Beppe Calò, Vito Mancini, Giuseppe Carrieri, Luigi Cormio
CONTEXT: The classification of flat non-neoplastic urothelial lesions has been evolved through the years in the attempt to better define a spectrum of morphologic entities with somewhat overlapping features. Differentiating these lesions is important because of differences in patient management and clinical outcome. Materials and methods and objective: A systematic review of the literature has been carried out in order to (1) assess the most striking clinical features of each lesion, and (2) identify those morphological traits and immunophenotypical markers which may aid in the differential diagnosis...
January 15, 2018: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/29332062/cytologic-features-of-malignant-melanoma-with-osteoclast-like-giant-cells
#2
José A Jiménez-Heffernan, Magdalena Adrados, Patricia Muñoz-Hernández, Paloma Fernández-Rico, Ana I Ballesteros-García, Javier Fraga
BACKGROUND: Malignant melanoma showing numerous osteoclast-like giant cells (OGCs) is an uncommon morphologic phenomenon, rarely mentioned in the cytologic literature. The few reported cases seem to have an aggressive clinical behavior. Although most findings support monocyte/macrophage differentiation, the exact nature of OGCs is not clear. CASE: A 57-year-old woman presented with an inguinal lymphadenopathy. Sixteen years before, cutaneous malignant melanoma of the lower limb had been excised...
January 13, 2018: Acta Cytologica
https://www.readbyqxmd.com/read/29327715/de-novo-pure-erythroid-leukemia-refining-the-clinicopathologic-and-cytogenetic-characteristics-of-a-rare-entity
#3
Erica F Reinig, Patricia T Greipp, April Chiu, Matthew T Howard, Kaaren K Reichard
Per the revised fourth edition World Health Organization classification of acute myeloid leukemia, pure erythroid leukemia is now the sole type of acute erythroid leukemia. The diagnosis of this rare entity is often challenging and the cytologic overlap with non-neoplastic (eg, megaloblastic anemia) and neoplastic entities (eg, other types of acute leukemia and non-hematopoietic malignancies) warrants a significant degree of clinical, laboratory, immunophenotypic, and genetic investigation. Given the limited number of reports of this rare and diagnostically challenging entity, we report detailed clinicopathologic characteristics from 15 patients, the largest series thus far, of primary de novo pure erythroid leukemia to provide further diagnostic insights into this entity and reveal strategies for making the diagnosis...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29327714/a-comprehensive-flow-cytometry-based-immunophenotypic-characterization-of-burkitt-like-lymphoma-with-11q-aberration
#4
Grzegorz Rymkiewicz, Beata Grygalewicz, Magdalena Chechlinska, Katarzyna Blachnio, Zbigniew Bystydzienski, Joanna Romejko-Jarosinska, Renata Woroniecka, Michalina Zajdel, Katarzyna Domanska-Czyz, David Martin-Garcia, Ferran Nadeu, Pawel Swoboda, Jolanta Rygier, Barbara Pienkowska-Grela, Jan Konrad Siwicki, Monika Prochorec-Sobieszek, Itziar Salaverria, Reiner Siebert, Jan Walewski
We previously described a subset of MYC translocation-negative aggressive B-cell lymphomas resembling Burkitt lymphoma, characterized by proximal gains and distal losses in chromosome 11. In the 2016 WHO classification, these MYC-negative lymphomas were recognized as a new provisional entity, 'Burkitt-like lymphoma with 11q aberration'. Here we present an immunophenotype analysis of Burkitt-like lymphomas with 11q aberration. Cells were acquired by fine needle aspiration biopsy from 10 young adult patients, 80% of whom presented recurrence-free 5-year survival...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29327669/advanced-3d-models-culture-to-investigate-mesenchymal-stromal-cells-of-the-human-dental-follicle
#5
Nathalie Steimberg, Francesca Angiero, Davide Farronato, Angiola Berenzi, Gianguido Cossellu, Andrea Ottonello, Darnell Kaigler, Giovanna Mazzoleni
The human dental follicle (hDF) contains the developing tooth and is involved in regulating tooth maturation and eruption. To investigate the mesenchymal stromal cells of the dental follicle, two 3D culture models were used, based on a dynamic bioreactor: the Rotary Cell Culture System (RCCS) and the 3D culture of precursor cells isolated from follicular tissue (hDFCs). The hDFCs were obtained from impacted third molars of 20 patients. Two 3D culture models were tested. In the first model, intact hDF explants were cultured in 3D conditions, preserving the original tissue architecture; they were studied via histomorphological and molecular analyses...
January 12, 2018: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29326990/a-fluorescent-microbead-based-microfluidic-immunoassay-chip-for-immune-cell-cytokine-secretion-quantification
#6
Xin Cui, Ya Liu, Dinglong Hu, Weiyi Qian, Chung Tin, Dong Sun, Weiqiang Chen, Raymond H W Lam
Quantitative and dynamic analyses of immune cell secretory cytokines are essential for precise determination and characterization of the "immune phenotype" of patients for clinical diagnosis and treatment of immune-related diseases. Although multiple methods including the enzyme-linked immunosorbent assay (ELISA) have been applied for cytokine detection, such measurements remain very challenging in real-time, high-throughput, and high-sensitivity immune cell analysis. In this paper, we report a highly integrated microfluidic device that allows for on-chip isolation, culture, and stimulation, as well as sensitive and dynamic cytokine profiling of immune cells...
January 12, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29326339/ninety-year-old-man-with-hypereosinophilia-lymphadenopathies-and-pruritus
#7
José Guilherme Freitas, Ana Jorge, Daniel Rei, Joana Graça
We report a case of a 90-year-old man with hypereosinophilia, lymphadenopathies and skin lesions, namely lichenification and pruritus. An aetiological investigation was performed, and a bone marrow (BM) biopsy and aspirate showed a hypercellular marrow with hypereosinophilia without dysmorphia or abnormal elements, and the BM and inguinal node's immunophenotyping denied any presence of abnormal lymphoid cell population. The inguinal node biopsy revealed a multinodular proliferation of large cells S100 and CD1a+, and a diagnosis of Langerhans cell histiocytosis was made...
January 10, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29325251/-extrapleural-solitary-fibrous-tumor-with-uncommon-histology-a-clinicopathologic-analysis-of-7-cases
#8
M Zhao, Z R Yang, Y B Wang, Y Chen, G W Qi, Y J Yan, W J Xu, G Q Ru, X L He
Objective: To investigate the clinicopathologic characteristics, immunophenotypes, and differential diagnostic features of extra-pleural solitary fibrous tumor (SFT) with uncommon histology. Methods: Seven cases of extra-pleural SFT with uncommon histology were collected during January 2015 and December 2016 in Zhejiang Provincal People's Hospital; the clinical and radiologic features, histomorphology, immunophenotype and prognosis were analyzed. EnVision method was used for immunohistochemical staining of STAT6, CD34 and other differential diagnosis associated markers...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29325249/-clinicopathologic-features-of-primary-hepatic-marginal-zone-lymphoma-of-mucosa-associated-lymphoid-tissue-and-hepatic-pseudolymphoma
#9
C Liu, X Li, H Li, Q X Gong, Y Li, Z Wang, Z H Zhang
Objective: To study the clinicopathological features of primary hepatic extranodal marginal zone lymphoma of mucosa associated lymphoid tissue (MALT lymphoma) and hepatic pseudolymphoma, and to discuss their differential diagnosis, treatment and prognosis. Methods: Three primary hepatic MALT lymphomas and two hepatic pseudolymphomas collected from January 2012 to March 2017 in the First Affiliated Hospital of Nanjing Medical University were evaluated by HE and immunohistochemistry(IHC), in-situ hybridization and immunoglobulin (Ig) gene rearrangement detection, and the relevant literature reviewed...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29325247/-impact-of-prdm1-gene-inactivation-on-c-myc-regulation-in-diffuse-large-b-cell-lymphoma
#10
X Y Zhang, Z P Ma, W L Cui, X L Pang, R Chen, L Wang, W Zhang, X X Li
Objective: To investigate the role of PRDM1 gene inactivaion in the regulation of C-MYC in diffuse large B-cell lymphoma (DLBCL), and to explore the correlation of its immunophenotype and prognosis. Methods: 100 cases paraffin-embedded DLBCL tissues were collected from January 2009 to December 2015 at the First Affiliated Hospital of Xinjiang Medical University along with 20 cases of reactive proliferative lymph nodes as control. Immunohistochemical methods were used to detect the expression of CD20, CD10, MUM1, Ki-67, bcl-6, PRDM1/Blimp1, C-MYC and PAX5 protein...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29325245/-clinical-characteristics-of-high-grade-b-cell-lymphomas-with-rearrangement-of-myc-bcl-6-and-bcl-2
#11
J Y Gong, Y Z Zhang, J D Zhang, W Zhang, J Q Li, K Ru, E B Liu
Objective: To investigate the clinicopathologic features of patients with high-grade B-cell lymphomas (HGBL) that have rearrangements of MYC, bcl-6 and bcl-2. Methods: One hundred and fifty-eight B-cell lymphomas patients from Institute of Hematology and Blood Diseases Hospital from January 2016 to April 2017 were detected by fluorescence in situ hybridization (FISH) with double color split-apart probes. Results: Among 158 B-cell lymphomas, 3 cases with MYC, bcl-2 and bcl-6 rearrangements were identified, 1 of which also had CCND1/IgH translocation...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29325232/expression-of-cd163-in-hereditary-gingival-fibromatosis-a-possible-association-with-tgf-%C3%AE-1
#12
Hala H Hazzaa, Ossama M Gouda, Naglaa M Kamal, Shereen Abdel Moula Ali, Marwa A M ElShiekh, Marwa M Tawfik
BACKGROUND: Although several studies have discussed some of the molecular and cellular changes associated with hereditary gingival fibromatosis (HGF), its pathogenesis is still largely unclear. This study was directed to detect and outline the degree of relationship between the immunophenotyped macrophages (M2) expressing CD163 and TGF-β1 in patients with gingival overgrowth due to HGF. METHODS: Biopsies from 20 patients suffering from HGF and 20 normal control subjects were harvested, histologically and immunohistochemically stained then, analyzed and statistically compared and correlated for CD163 immunoexpression and TGF-β1...
January 11, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29324473/chondromyxoid-fibroma-arising-in-craniofacial-sites-a-clinicopathologic-analysis-of-25-cases
#13
David M Meredith, Christopher D M Fletcher, Vickie Y Jo
Chondromyxoid fibroma (CMF) is a rare benign tumor, usually arising in the metaphysis of long bones in young adults. Occurrence in craniofacial bones presents a particular diagnostic challenge given its unusual location and resemblance to malignant mimics. We describe the clinicopathologic features of 25 cases of craniofacial CMF identified between 1999 and 2017. Patients were 14 men and 11 women, with median age of 44 years (range, 5 to 83 y). Sites of involvement were sphenoid (7), ethmoid (5), maxilla (3), occipital (2), nasal septum (2), palatine (2), temporal (2), orbit (1), and undisclosed skull (1)...
January 10, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29324470/fibroma-like-pecoma-a-tuberous-sclerosis-complex-related-lesion
#14
Ana B Larque, Richard L Kradin, Ivan Chebib, G Petur Nielsen, Martin K Selig, Elizabeth A Thiele, Anat Stemmer-Rachamimov, Miriam A Bredella, Pawel Kurzawa, Vikram Deshpande
Perivascular epithelioid cell tumor (PEComa), mesenchymal tumors morphologically characterized by epithelioid cells, coexpress melanocytic and muscle markers. Herein, we describe a heretofore-undescribed tuberous sclerosis complex (TSC)-related neoplasm, morphologically resembling a soft tissue fibroma-like lesion, but showing an immunophenotype resembling PEComa. We identified 3 soft tissue fibroma-like lesions in individuals with TSC. We also evaluated 6 TSC-related periungual fibroma as well as a range of non-TSC fibroma-like lesions (n=19)...
January 10, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29323085/cd19-negative-b-lineage-acute-lymphoblastic-leukemia-a-diagnostic-and-therapeutic-challenge
#15
Shashi Bansal, Upendra Sharma, Akansha Jain, Richa Sharma, Bhargav Yagnik
B-lineage acute lymphoblastic leukemia (B-ALL) is an aggressive neoplasm of B-lymphocyte precursors that express the pan B-cell marker CD19 in all the cases. Rarely, a case may be assigned as B-lineage even if CD19 is negative. Here, a 16-year-old male presented with complaints of pain abdomen, on and off fever, joint pain, and hepatosplenomegaly for 2 months. Bone marrow examination was suggestive of acute leukemia with numerous leukoblasts on aspiration. On flow cytometry, gated blast population was negative for CD19, cytoCD3, and myeloperoxidase MPO and positive for CD34, TdT, HLA-DR, CD22, CD79a, and CD10...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29322604/clinical-characteristics-and-outcome-in-dogs-with-small-cell-t-cell-intestinal-lymphoma
#16
K M Couto, P F Moore, A L Zwingenberger, J L Willcox, K A Skorupski
Small cell intestinal lymphoma has not been well characterized in dogs. The objective of this study was to describe clinical characteristics and outcome in dogs with small cell intestinal lymphoma. We hypothesized that affected dogs would have prolonged survival compared with high-grade gastrointestinal (GI) lymphoma. Pathology records were searched for dogs with histologically confirmed small cell GI lymphoma. Seventeen dogs with confirmed small cell intestinal lymphoma were identified, and clinical and outcome data were retrospectively collected...
January 11, 2018: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/29322427/immunophenotyping-of-pediatric-brain-tumors-correlating-immune-infiltrate-with-histology-mutational-load-and-survival-and-assessing-clonal-t-cell-response
#17
Ashley S Plant, Shohei Koyama, Claire Sinai, Isaac H Solomon, Gabriel K Griffin, Keith L Ligon, Pratiti Bandopadhayay, Rebecca Betensky, Ryan Emerson, Glenn Dranoff, Mark W Kieran, Jerome Ritz
There is little known regarding the immune infiltrate present in pediatric brain tumors and how this compares to what is known about histologically similar adult tumors and its correlation with survival. Here, we provide a descriptive analysis of the immune infiltrate of 22 fresh pediatric brain tumor tissue samples of mixed diagnoses and 40 peripheral blood samples. Samples were analyzed using a flow cytometry panel containing markers for immune cell subtypes, costimulatory markers, inhibitory signals, and markers of activation...
January 10, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29316245/flow-cytometric-aberrancies-in-plasma-cell-myeloma-and-mgus-correlation-with-laboratory-parameters
#18
Sarika Gupta, Nitin J Karandikar, Timothy Ginader, Andrew M Bellizzi, Carol J Holman
BACKGROUND: Multiparametric flow cytometry (MFC) is a useful tool for diagnosis of plasma cell dyscrasias and assessment of minimal residual disease (MRD) in plasma cell myeloma (PCM). However, the immunophenotypic differences between the clonal plasma cells (PCs) of plasma cell myeloma (PCM) and those of monoclonal gammopathy of undetermined significance (MGUS) as well as the correlation of these flow cytometric markers with pertinent laboratory parameters have not been evaluated. METHODS: We retrospectively identified all newly diagnosed treatment-naive PCM and MGUS patients between 09/2014 and 06/2015 who underwent 10-color flow-cytometric evaluation: CD45, CD38, CD138, cKappa, cLambda, CD19, CD27, CD28, CD56, CD117...
January 6, 2018: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29316199/usefulness-of-the-cllflow-score
#19
Marc Sorigue, Mireia Franch-Sarto, Edurne Sarrate, Jordi Junca
BACKGROUND: The CLLflow score was recently suggested as an improvement over the Moreau score for the diagnosis and classification of B-cell lymphoproliferative disorders (B-LPD). METHODS: We determined the CLLflow score in peripheral blood or bone marrow of a series of cases with an inconclusive immunophenotype, including samples with a Moreau score of 3 (n=52) and CD5-positive with a score of 2 (n=38). As controls, B-LPD with a Moreau score of 0-1 (n=95), CD5-negative score 2 (n=24) and score 4-5 (i...
January 6, 2018: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/29316178/evaluation-of-cd229-as-a-new-alternative-plasma-cell-gating-marker-in-the-flow-cytometric-immunophenotyping-of-monoclonal-gammopathies
#20
Prashant R Tembhare, Sitaram Ghogale, Wilma Tauro, Yajamanam Badrinath, Nilesh Deshpande, Shweta Kedia, Keziah Cherian, Nikhil V Patkar, Gaurav Chatterjee, Sumeet Gujral, Papagudi G Subramanian
BACKGROUND: Current flow-cytometric plasma cell (PC) gating is based on CD138, CD38 and CD45 expression. CD138 is known for variable expression and loss during storage and processing. Introduction of anti-CD38 and anti-CD138 monoclonal-antibody therapies has limited the use of these markers during follow-up. Hence, additional reliable PC-gating markers are required. Recently, CD229 has been claimed as an alternative PC-gating marker. However, these studies are limited to a small cohort of samples...
January 9, 2018: Cytometry. Part B, Clinical Cytometry
keyword
keyword
7182
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"