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Lymphoma pathology

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https://www.readbyqxmd.com/read/29779620/evaluation-of-fine-needle-aspiration-cytology-in-the-diagnosis-of-cervical-lymph-node-lymphomas
#1
Yoldez Houcine, Emna Romdhane, Ahlem Blel, Meriem Ksentini, Raoudha Aloui, Rim Lahiani, Nadia Znaidi, Mamia Ben Salah, Soumaya Rammeh
PURPOSE: Surgical biopsy examination is the gold standard for the diagnosis of lymph node lymphomas. Fine-needle aspiration cytology (FNAC) is a quick and safe method in the management of cervical lymph nodes. Its value in confirming recurrent or residual lymphoma is well established. However, its role in the primary diagnosis of lymph node lymphoma remains controversial. The aim of this study was to assess, in our experience, the reliability of FNAC in the diagnosis of cervical lymph node lymphomas...
April 28, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29775622/clinicopathological-analysis-of-immunohistochemical-expression-of-retinoic-acid-related-orphan-receptor-%C3%AE-t-in-peripheral-t-cell-lymphoma-not-otherwise-specified
#2
Eriko Yanagida, Hiroaki Miyoshi, Keisuke Kawamoto, Kazutaka Nakashima, Kotaro Matsuda, Kyohei Yamada, Reiji Muto, Koji Nagafuji, Masao Seto, Koichi Ohshima
Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS) is cytologically and phenotypically heterogeneous. Retinoic acid-related orphan receptor-γt (RORγt) is a transcription factor that regulates the differentiation of naïve CD4+ helper T-cells to Th17 cells. In the present study, we immunohistochemically confirmed the expression of RORγt in PTCL-NOS. Pathological and clinical investigations were performed for 170 cases of PTCL-NOS. RORγt-positive cases accounted for 17.6% (30/170) of the total cases and they showed a significantly higher frequency of CD8 positivity (P=...
May 15, 2018: Human Pathology
https://www.readbyqxmd.com/read/29771407/association-of-sox11-gene-expression-withclinical-features-and-prognosis-of-mantle-cell-lymphoma
#3
J-X He, Y-F Xi, L-P Su, N Gao, E-W Xu, L-W Xie, L-Y Wang, Y-P Zheng, W-E Han, J Chang, H-W Wang
OBJECTIVE: To study the expression of SOX11 in the patients with mantle cell lymphoma (MCL) and explore the clinical values of SOX11 in MCL. PATIENTS AND METHODS: In the paraffin-embedded MCL tissues of 75 patients diagnosed in the Department of Hematology, Shanxi Tumor Hospital, were performed the immunohistochemical labeling of Ki67 and SOX11 by the EnVision method. Meanwhile, the expression of SOX11 mRNA was also detected by reverse transcriptase-polymerase chain reaction (RT-PCR), and the association of SOX11 with such prognostic indexes as pathological typing, staging, immunophenotyping, and MIPI was analyzed using the statistical method...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29768334/a-case-report-of-b-lymphoblastic-lymphoma-with-brain-metastases-clinical-and-pathological-significance-of-head-trauma-misdiagnosis
#4
Jian Shi, Jale Manzo, Yiwu Zhou, Peter Agovino, Song Wu
INTRODUCTION: B lymphoblastic lymphoma (B-LBL) is a rare type of lymphoma that originates from precursor lymphocytes. B-BLB in adults with brain metastases is extremely rare as the disease mainly affects children and adults. Therefore, such a seldom-seen case can easily trigger a dispute regarding clinical diagnosis and treatment.This paper reports the case of a 22-year-old man hospitalized for a head injury that resulted from a physical altercation. Upon admission to the hospital, the patient was diagnosed with a diffuse axonal injury (DAI)...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29767257/bmp%C3%A2-6-protects-retinal-pigment-epithelial-cells-from-oxidative-stress%C3%A2-induced-injury-by-inhibiting-the-mapk-signaling-pathways
#5
Li Chen, Ming Liu, Yan Luan, Yingfei Liu, Zhichao Zhang, Bo Ma, Xuan Liu, Yong Liu
Worldwide, neovascular age‑related macular degeneration (nAMD) is one of the most common causes of blindness in the elderly. In particular, degeneration of retinal pigment epithelial (RPE) cells represents the main pathological process in the development of nAMD, and oxidative stress serves a major role. The present study aimed to investigate the association between bone morphogenetic protein 6 (BMP‑6) and nAMD. BMP‑6 concentration was significantly reduced in patients with wet nAMD compared with in the control group...
May 14, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29766790/malt-lymphoma-stress-ulcer-and-cholinergic-nerves-from-the-viewpoint-of-bilateral-and-unilateral-truncal-vagotomy-and-substance-p
#6
Yosuke Kodama, Kazuki Sasaki, Futa Murasato, Anders Øverby, Shinichi Takahashi, Somay Y Murayama, Hidenori Matsui, Masahiko Nakamura
BACKGROUND: Vagal nerve plays an important role in the stomach function. The cholinergic nerves are the most abundantly distributed nerves in the gastric tissue. It has recently been reported that the vagal nerve is significantly related to both gastric cancer development and progression. However, its relation to the mesenchymal tumor, including MALT lymphoma, is not known. In this study, we investigated the effect of unilateral truncal vagotomy on gastric MALT lymphoma development by using Helicobacter heilmannii-infected mouse model as well as that of bilateral truncal vagotomy on stress-induced ulcer formation...
May 15, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29764505/xenograft-tumors-derived-from-malignant-pleural-effusion-of-the-patients-with-non-small-cell-lung-cancer-as-models-to-explore-drug-resistance
#7
Yunhua Xu, Feifei Zhang, Xiaoqing Pan, Guan Wang, Lei Zhu, Jie Zhang, Danyi Wen, Shun Lu
BACKGROUND: Non-small cell lung cancer (NSCLC) patients with epidermal growth factor receptor (EGFR) mutations or anaplastic lymphoma kinase (ALK) fusions show dramatic responses to specific tyrosine kinase inhibitors (TKIs); however, after 10-12 months, secondary mutations arise that confer resistance. We generated a murine xenograft model using patient-derived NSCLC cells isolated from the pleural fluid of two patients with NSCLC to investigate the mechanisms of resistance against the ALK- and EGFR-targeted TKIs crizotinib and osimertinib, respectively...
May 9, 2018: Cancer communications
https://www.readbyqxmd.com/read/29764448/small-bowel-lymphoma-presenting-as-inguinal-hernia-case-report-and-literature-review
#8
Michele Teodoro, Maurizio Mannino, Marco Vitale, Edoardo Mattone, Valentina Palumbo, Filippo Fraggetta, Adriana Toro, Isidoro Di Carlo
BACKGROUND: Inguinal hernia is one of the most common benign pathologies that primarily affects men. Primary gastrointestinal non-Hodgkin's lymphoma (PGI NHL) is the most common type of extranodal lymphoma. This study reports a rare case in which these two conditions co-exist. CASE PRESENTATION: An 85-year-old male complained of bowel movement pattern change, abdominal distension and loss of weight, without vomiting but with nausea. A computed tomographic scan of the abdomen showed a small bowel obstruction caused by a migration of a small bowel loop in the right inguinal canal, with a clinically non-reducible inguinal hernia...
May 15, 2018: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29760956/bh4-domain-peptides-derived-from-bcl-2-bcl-xl-as-novel-tools-against-acute-pancreatitis
#9
Tim Vervliet, Julia V Gerasimenko, Pawel E Ferdek, Monika A Jakubowska, Ole H Petersen, Oleg V Gerasimenko, Geert Bultynck
Biliary acute pancreatitis (AP) is a serious condition, which currently has no specific treatment. Taurolithocholic acid 3-sulfate (TLC-S) is one of the most potent bile acids causing cytosolic Ca2+ overload in pancreatic acinar cells (PACs), which results in premature activation of digestive enzymes and necrosis, hallmarks of AP. The inositol 1,4,5-trisphosphate receptor (IP3 R) and the ryanodine receptor (RyR) play major roles in intracellular Ca2+ signaling. Inhibition of these endoplasmic reticulum-located channels suppresses TLC-S-induced Ca2+ release and necrosis, decreasing the severity of AP...
2018: Cell Death Discovery
https://www.readbyqxmd.com/read/29760795/capable-infection-of-hepatitis-b-virus-in-diffuse-large-b-cell-lymphoma
#10
Yanchun Wang, Huijie Wang, Shaokun Pan, Tao Hu, Jiabin Shen, Hui Zheng, Suhong Xie, Youhua Xie, Renquan Lu, Lin Guo
Background: Diffuse large B-cell lymphoma (DLBCL) is the most common pathological type of non-Hodgkin lymphoma (NHL). It is strongly correlated to the host immunity and infection status. Aim: This study tested the hypothesis that hepatitis B virus (HBV) infection is also associated with DLBCL. Methods: Clinical analysis of the correlation between DLBCL and HBV infection, detection of HBV in situ of DLBCL tissue, and biological experiments that determined whether HBV infects B lymphocytes were conducted. Results: Our long-term clinical data showed that the positive rate of serum HBV was significantly increased in DLBCL patients (23...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29760712/the-function-of-micrornas-in-b-cell-development-lymphoma-and-their-potential-in-clinical-practice
#11
REVIEW
Bing Zheng, Zhijiang Xi, Rong Liu, Wei Yin, Zhiwei Sui, Boxu Ren, Heather Miller, Quan Gong, Chaohong Liu
B-cell formation, development, and differentiation are complex processes regulated by several mechanisms. Recently, there has been growing evidence indicating that microRNAs (miRNAs) are important for normal B-cell lineage development. miRNAs are small non-coding RNA molecules, about 20-22 nucleotide in length, that play an important role in regulating gene expression. They pair with specific messenger RNAs (mRNAs), resulting in mRNAs translational repression or degradation. Here, we review current research about the function of miRNAs in the aspects of B-cell physiology and pathology...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29756323/primary-mediastinal-histiocytic-sarcoma-presenting-as-pleural-effusion
#12
Jie-Yang Jhuang, Wei-Yu Chen, Shih-Sung Chuang
Histiocytic sarcoma (HS) is a rare malignant neoplasm showing morphological and immunophenotypic features of mature tissue histiocytes. As HS may mimic non-Hodgkin lymphoma (NHL) pathologically, before the era of immunohistochemistry, many previously reported cases were misdiagnosed NHL. Up to date, there are only a few reports delineating the cytological features in fine-needle aspiration or bronchoalveolar lavage, but not in the effusion fluid yet. Herein, we report the case of a 61-year-old male with a mediastinal tumor presenting with malignant pleural effusion...
May 13, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29755111/genomic-landscape-and-prognostic-analysis-of-mantle-cell-lymphoma
#13
Ping Yang, Weilong Zhang, Jing Wang, Yuanyuan Liu, Ran An, Hongmei Jing
To gain insight into the molecular pathogenesis of patients with mantle cell lymphoma (MCL), next-generation whole-exome sequencing of 16 MCL patients was performed. We identified recurrent mutations in genes that are well known to be functionally relevant in MCL, including ATM (37.5%), TP53 (31.3%), WHSC1 (31.3%), CCND1 (18.8%), NOTCH2 (6.3%), and CDKN2A (6.3%). We also identified somatic mutations in genes for which a functional role in MCL has not been previously suspected. These genes included CCDC15, APC, CDH1, S1PR1, ATRX, BRCA2, CASP8, and NOTCH3...
May 14, 2018: Cancer Gene Therapy
https://www.readbyqxmd.com/read/29749536/biib021-an-hsp90-inhibitor-a-promising-therapeutic-strategy-for-blood-malignancies-review
#14
Wei He, Huixian Hu
Heat shock proteins (HSPs) are molecular chaperones that are consistently increased to help cells survive under conditions of stress. As a member of the Hsps, Hsp90 is involved in protein post‑translational maturation and disposition. This protein is ubiquitously expressed in normal cells. However, in cancer cells and particularly in hematological malignancies, Hsp90 is unexpectedly abundant to maintain levels of proteins vital for cancer pathology. Hsp90 inhibitors can target the ATP domain of Hsp90 and prohibit its exchange of ADP for ATP, leading to the degradation of client proteins and disruption of signaling cascades...
May 8, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29749359/immunohistochemistry-on-pattern-of-ocular-adnexal-tumours-in-a-tertiary-eye-care-centre-of-northeast-india
#15
Dipankar Das, Harsha Bhattacharjee, Apurba Deka, Panna Deka, Samir Serasiya, Kasturi Bhattacharjee, Jayanta Kumar Das, Ganesh Chandra Kuri, Eknath Pawar, Rushil Kumar Saxena
Background & objectives: Ocular and adnexal tumours are important causes of morbidity in India and globally. Immunohistochemistry (IHC) is a vital molecular pathology tool, which helps to diagnose a tumour with more accuracy. The present study was undertaken to document the profile of ocular and adnexal tumour with IHC at a tertiary eye care center in Northeast India. Methods: This was a prospective and laboratory-based study. Histopathological and IHC study of the ocular and adnexal tumour was carried out from 2012 to 2014...
January 2018: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29747315/-value-of-pet-ct-in-the-prognosis-of-extranodal-nk-t-cell-lymphoma
#16
G H Dong, Y Li, H F Wan, C Y He, L Yang, J W Wang, L P Gong, Y H Zhao, Z F Gao, H G Liu
Objective: To explore the value of Positron-Emission Tomography/Computed Tomography (PET/CT) in the prognosis of extranodal NK/T cell lymphoma. Methods: The patients of NK/T cell lymphoma diagnosed from January 2007 to July 2016 in Department of Pathology of Beijing Tongren Hospital were enrolled in this study. Seventy-two in-hospital patients were examined on the invasion of adjecent tissue or organ by PET/CT. The PET/CT results were analyzed retrospectively. Kaplan-Meier method was used to analyze the prognostic value of the positive results by PET/CT on overall survival (OS)...
April 24, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29747272/-analysis-of-proliferative-lesions-of-haematopoietic-and-lymphoid-tissue-in-the-female-productive-tract
#17
D B Chen, H Zhang, Y H Zhang, Y Wang, Q J Song, S M Yang, H Cui, Y Zhao, X Z Fang, D H Shen
Objective: To study the clinicopathologic features, diagnosis and differential diagnosis of tumors of haematopoietic and lymphoid tissue in the female productive tract. Methods: Eleven cases of myeloid sarcoma and leukemia, 9 of non Hodgkin lymphoma (NHL) , 13 of cervical lymphoma-like lesions were selected from Peking University People's Hospital from January 2006 to August 2017. According to WHO classification of tumors of haematopoietic and lymphoid tissues (2008) and updated classification(2016), the cases were studied by microscopy, immunohistochemistry and in situ hybridization...
April 25, 2018: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29744229/alk-positive-squamous-cell-carcinoma-dramatically-responded-to-alectinib
#18
Ray Sagawa, Takehiko Ohba, Eisaku Ito, Susumu Isogai
Anaplastic lymphoma kinase (ALK) rearrangement is usually observed in patients with adenocarcinoma. Herein, we report a case of squamous cell carcinoma (SCC) with ALK rearrangement treated with alectinib. The patient was a 73-year-old woman without a smoking history. She consulted us with nonproductive cough and loss of appetite. Computed tomography scan revealed a mass in the left lower lobe of the lung. According to the pathological examinations, we diagnosed the tumor as SCC. Because the patient had never smoked, we searched for driver mutations and found that the tumor harbored ALK rearrangement...
2018: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29740389/a-rare-case-of-composite-dural-extranodal-marginal-zone-lymphoma-and-chronic-lymphocytic-leukemia-small-lymphocytic-lymphoma
#19
REVIEW
Mark Bustoros, Benjamin Liechty, David Zagzag, Cynthia Liu, Timothy Shepherd, Deborah Gruber, Bruce Raphael, Dimitris G Placantonakis
Background: Primary extranodal marginal zone lymphoma (MZL) of the dura is a rare neoplastic entity in the central nervous system (CNS). Methods: We used literature searches to identify previously reported cases of primary dural MZL. We also reviewed clinical, pathologic, and radiographic data of an adult patient with concurrent dural MZL and chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL). Results: We identified 104 cases of dural MZL in the literature...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29738359/genomic-profile-and-pathologic-features-of-diffuse-large-b-cell-lymphoma-subtype-of-methotrexate-associated-lymphoproliferative-disorder-in-rheumatoid-arthritis-patients
#20
Joaquim Carreras, Yara Yukie Kikuti, Masashi Miyaoka, Shinichiro Hiraiwa, Sakura Tomita, Haruka Ikoma, Yusuke Kondo, Sawako Shiraiwa, Kiyoshi Ando, Shinji Sato, Yasuo Suzuki, Ikuo Miura, Giovanna Roncador, Naoya Nakamura
Rheumatoid arthritis patients often develop the diffuse large B-cell lymphoma subtype of methotrexate-associated lymphoproliferative disorder (DLBCLMTX-LPD ). We characterized the genomic profile and pathologic characteristics of 20 biopsies using an integrative approach. DLBCLMTX-LPD was associated with extranodal involvement, a high/high-intermediate international prognostic index in 53% of cases, and responded to MTX withdrawal. The phenotype was nongerminal center B-cell in 85% of samples and Epstein-Barr encoding region positive (EBER+ ) in 65%, with a high proliferation index and intermediate MYC expression levels...
May 5, 2018: American Journal of Surgical Pathology
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