Abstract:
BACKGROUND:Well differentiated liposarcomas (WDLPS) and dedifferentiated liposarcomas (DDLPS) have been shown to have supernumerary chromosomes with amplified sequences of the MDM2 and CDK4 genes. MDM2 and CDK4 protein overexpression have also been identified in these tumours. AIM:To investigate whether immunohistochemistry (IHC) for MDM2 and CDK4 can be used to diagnose WDLPS and DDLPS. METHODS:IHC for MDM2/CDK4 was carried out on a series of 129 paraffin-embedded lipomatous and non-lipomatous soft tissue tumours. The cases were divided into four groups: WDLPS (n = 19), DDLPS (n = 10), benign adipocytic tumours (BAT) (n = 17), and other mesenquimal tumours (OMT) (n = 83). IHC results were compared in each group and the diagnostic efficacy of the test in identifying WDLPS and DDLPS among the other soft tissue tumours was determined. A percentage of tumour cell positivity was evaluated to better characterise the pattern of tumour immunostaining. RESULTS:Sensitivity and specificity of positive MDM2 and CDK4 immunostainings to identify WDLPS among BAT was 100% and 58.8%, and 68.4% and 88.2%, respectively. When distinguishing DDLPS from OMT, sensitivity and specificity of MDM2 and CDK4 were 90% and 65%, and 70% and 96.3%, respectively. The highest specificity was achieved when a case was considered positive with strong and diffuse immunoreactivity in more than 30% of the neoplastic cells (94.1% and 100%, and 77.1% and 98.8%, respectively). CONCLUSION:Detection of MDM2/CDK4 protein overexpression by IHC can be used by pathologists to diagnose WDLPS and DDLPS. Considering a strong and diffuse immunostaining pattern in most of the neoplastic cells achieves the best results in identifying these tumours.
journal_name
J Clin Patholjournal_title
Journal of clinical pathologyauthors
Aleixo PB,Hartmann AA,Menezes IC,Meurer RT,Oliveira AMdoi
10.1136/jcp.2009.070201subject
Has Abstractpub_date
2009-12-01 00:00:00pages
1127-35issue
12eissn
0021-9746issn
1472-4146pii
62/12/1127journal_volume
62pub_type
杂志文章abstract::Malignant extrarenal rhabdoid tumour (MERT) of the gastrointestinal tract is rarely reported in the literature. This report describes the clinical and pathological features of a malignant rhabdoid tumour of the oesophagus in a Chinese man. Ivor-Lewis oesophagectomy had been performed. The tumour behaved aggressively a...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.56.9.713
更新日期:2003-09-01 00:00:00
abstract:AIMS:Determine whether a simple prewash step will provide adequate amounts of high-quality DNA from core needle biopsies for molecular sequencing studies. METHODS:The quantitative and qualitative metrics of DNA recovered from core needle biopsies processed either by 1) formalin fixation and paraffin embedding (FFPE), ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2016-204061
更新日期:2017-06-01 00:00:00
abstract:AIMS:To identify calcifying epithelial odontogenic tumour (CEOT) mutations in oncogenes and tumour suppressor genes. METHODS:A panel of 50 genes commonly mutated in cancer was sequenced in CEOT by next-generation sequencing. Sanger sequencing was used to cover the region of the frameshift deletion identified in one sa...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2017-204813
更新日期:2018-03-01 00:00:00
abstract:AIMS:N-terminal pro-B-type natriuretic peptide (NT-proBNP) has been shown to be useful for ruling out heart failure in primary care. In this study, we examined the accuracy of the Cobas h232 point-of-care (POC) instrument in primary care compared with an in-hospital measurement. Furthermore, we investigated the user-fr...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,多中心研究
doi:10.1136/jclinpath-2017-204746
更新日期:2018-06-01 00:00:00
abstract::Autoinfective strongyloidiasis is often fatal in immunosuppressed patients or in immunocomprised hosts. An interesting case of Strongyloides stercolaris hyperinfection was seen in an immunocompetent patient. This report describes a case of fatal strogyloidiasis in a 79 year old man, who had suffered gastrointestinal d...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2004.017756
更新日期:2005-04-01 00:00:00
abstract::Evaluation of histological diagnosis requires an index of agreement (to measure repeatability and validity) together with a method of assessing bias. Cohen's kappa statistic appears to be the most suitable tool for measuring levels of agreement, which if unsatisfactory may be caused by bias. Further study of bias is p...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.36.11.1269
更新日期:1983-11-01 00:00:00
abstract::A microcomputer system for use in the sequential processing of specimens has been developed in a hospital microbiology department which receives 90 000 specimens a year. Data handling is performed directly through the computers without the use of cards or worksheets. The system facilitates the multistep processing of ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.38.2.215
更新日期:1985-02-01 00:00:00
abstract::Several diseases of the small intestine, including gluten-sensitivity, present with malabsorption and a "flat" mucosa. Determination of the mitotic index of epithelial lymphocytes provides a simple, objective method of assessing, and thus of predicting, whether a flat mucosa is due to gluten-sensitivity (index greater...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.36.2.149
更新日期:1983-02-01 00:00:00
abstract::In colonic biopsies of 33 patients with acute colitis caused by campylobacter, salmonella, or shigella immunoglobulin containing cells were determined quantitatively using an indirect immunoperoxidase technique and morphometry with a graphic tablet. The findings were compared with those of 10 patients without histolog...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.38.7.774
更新日期:1985-07-01 00:00:00
abstract::The neutrophil shape change response to a chemotactic formylpeptide was assessed. Neutrophil bipolar shape formation (BSF) was also simultaneously assessed with a Boyden chamber-based neutrophil migration assay. Both assays were precise and relatively reproducible; the average coefficient of variation for the BSF assa...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.43.4.342
更新日期:1990-04-01 00:00:00
abstract:AIMS:Hypomethylating agents (HMAs) exhibit clinical efficacy in patients with myelodysplastic syndromes (MDS) and myelodysplastic/myeloproliferative neoplasms (MDS/MPN). This study was performed to assess residual disease status by flow cytometry immunophenotyping (FCI) methods in patients with MDS or MDS/MPN treated w...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2016-203715
更新日期:2016-04-15 00:00:00
abstract::One hundred and two bone marrow samples were analysed by histological and immunohistochemical methods for neurone specific enolase (NSE). The biopsies were performed to determine the extent of bone marrow disease in 84 neuroblastomas, nine embryonal rhabdomyosarcomas, five Ewing's sarcomas, two cases of Hodgkin's dise...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.44.4.309
更新日期:1991-04-01 00:00:00
abstract:AIMS:Primary cilia play an important role in the regulation of cell signalling pathways and are thought to have a role in cancer but have seldom been studied in human cancer samples. METHODS:Primary cilia were visualised by dual immunofluorescence for anti-CROCC (ciliary rootlet coiled-coil) and anti-tubulin in a rang...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2016-204103
更新日期:2017-07-01 00:00:00
abstract::Neutropenia is a rare complication of Diamond-Blackfan syndrome (congenital hypoplastic anaemia). Three patients are reported: all had neutropenia as well as anaemia, and to investigate the cause of the neutropenia culture of bone marrow for granulocyte-macrophage colony forming cells (GMCFCs) was performed. Two cases...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.44.9.742
更新日期:1991-09-01 00:00:00
abstract::Lymphocyte-depleted classical Hodgkin lymphoma (LDCHL) is the rarest entity among the classical Hodgkin lymphoma (CHL) subtypes, accounting for <1% of CHL cases in Western countries. Similarly, primary splenic Hodgkin lymphoma is a rare diagnosis among all cases of lymphomatous involvement of spleen. Representing a co...
journal_title:Journal of clinical pathology
pub_type: 信件
doi:10.1136/jclinpath-2015-203145
更新日期:2015-11-01 00:00:00
abstract::Targeted next-generation sequencing using the 50-gene Ion AmpliSeq Cancer Hotspot Panel v2 identified two significant point mutations in endometrial stromal sarcomas (ESS). Case 1 is a uterine mass from a quadragenarian woman with a karyotype lacking any known ESS rearrangements but demonstrated to have a CTNNB1-activ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2020-206432
更新日期:2020-12-01 00:00:00
abstract::Gastrointestinal cell proliferation plays an important role in the maintenance of the integrity of the gastrointestinal system. The study of gastrointestinal proliferation kinetics allows a better understanding of the complexity of the system, and also has important implications for the study of gastrointestinal carci...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.52.5.321
更新日期:1999-05-01 00:00:00
abstract::The results of measurement of gamma globulin in the cerebrospinal fluid by electrophoresis and by an immunological technique are compared. In some fluids marked discrepancies were found. Such discrepancies, when substantiated and better understood, may have diagnostic significance. ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.16.4.370
更新日期:1963-07-01 00:00:00
abstract::A case of bacterial endocarditis was caused by Cardiobacterium hominis in a 41-year-old man with mitral and aortic incompetence due to a previous episode of rheumatic fever. The main distinguishing characteristics of C. hominis are described, and the incidence of endocarditis is reviewed. After six weeks of treatment ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.30.11.1033
更新日期:1977-11-01 00:00:00
abstract::The mucin and gland content of 26 rectal biopsy specimens--five normal specimens, 10 from patients with ulcerative colitis, and 11 from patients with Crohn's disease--were measured using a Quantimet image analyser. There was significantly less mucin in the groups with ulcerative colitis compared with either those with...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.43.2.143
更新日期:1990-02-01 00:00:00
abstract::Aberrations of ribosomal biogenesis have been implicated in several congenital bone marrow failure syndromes, such as Diamond-Blackfan anaemia, Shwachman-Diamond syndrome and Dyskeratosis Congenita. Recent studies have identified haploinsufficiency of RPS14 in the acquired bone marrow disease isolated 5q minus syndrom...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2015-203093
更新日期:2016-02-01 00:00:00
abstract::The hepatic and splenic storage iron, including the relative distribution between ferritin and haemosiderin, was estimated in 130 necropsies including normal accident cases and cases with a variety of diseases. The storage iron was also examined histochemically. It was found that in the normal subjects, on the average...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.16.2.101
更新日期:1963-03-01 00:00:00
abstract:AIMS:To describe characteristics of a series of people accidentally and deliberately killed by air powered weapons. METHODS:Five cases of fatal airgun injury were identified by forensic pathologists and histopathologists. The circumstances surrounding the case, radiological examination, and pathological findings are d...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.51.7.525
更新日期:1998-07-01 00:00:00
abstract::Gastrointestinal (GI) symptoms including abdominal pain, bloating and diarrhoea are a relatively common reason for consulting a physician. They may be due to inflammatory bowel disease (inflammatory bowel disease; Crohn's disease, ulcerative colitis and indeterminate colitis), malignancy (colorectal cancer), infectiou...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jclinpath-2012-200901
更新日期:2012-11-01 00:00:00
abstract::Neisseria gonorrhoeae is one of the most important causes of sexually transmitted disease. We do not fully understand the pathogenesis of infection with this organism, although recent improvements in immunological and molecular techniques have brought us closer to an answer. These techniques are now also being used to...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.40.9.1088
更新日期:1987-09-01 00:00:00
abstract:BACKGROUND:Prostate cancer diagnosis is routinely made by the histopathological examination of formalin fixed needle biopsy specimens. Frequently this is the only cancer tissue available from the patient for the analysis of diagnostic and prognostic biomarkers. There is, therefore, an urgent need for methods that allow...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2009.065201
更新日期:2009-08-01 00:00:00
abstract:AIMS:To assess the incidence of nocardia infection over 15 years in a tertiary care hospital. METHODS:Over a 15 year period, Nocardia spp were isolated from 20 patients hospitalised at the Geneva University Hospitals, Switzerland. RESULTS:Sixteen patients had one or more underlying conditions. The median time between...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2004.016923
更新日期:2004-08-01 00:00:00
abstract::A competitive enzyme linked immunosorbent assay (ELISA) method was used to measure the concentration of lactoferrin in fluids from 36 odontogenic keratocysts, 15 dentigerous cysts, and 30 radicular/residual cysts. Keratocyst fluids contained significantly higher concentrations of lactoferrin than fluids from the other...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.42.2.180
更新日期:1989-02-01 00:00:00
abstract:AIMS:Common variable immunodeficiency (CVID) is the most common serious primary immunodeficiency. This paper describes the immunological consequences of human immunodeficiency virus (HIV) infection in a patient with familial CVID subsequently treated with highly active antiretroviral therapy (HAART). METHODS:Serial me...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.54.9.713
更新日期:2001-09-01 00:00:00
abstract::Accurate histopathological assessment of biopsies is important for the diagnosis, subclassification, and management of chronic idiopathic inflammatory bowel disease (IBD). British Society of Gastroenterology (BSG) guidelines for the initial histopathological diagnosis of IBD were published in 1997. Changes since then ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,实务指引
doi:10.1136/jclinpath-2013-201885
更新日期:2013-12-01 00:00:00