Abstract:
:The aim of this article is to provide knowledge of the origin of catecholamines and metabolites so that there can be an informed approach to the methods for biochemical screening for a possible phaeochromocytoma; The article includes a review of catecholamine and metadrenaline metabolism, with methods used in biochemical screening. In the adrenal medulla and a phaeochromocytoma, catecholamines continuously leak from chromaffin granules into the cytoplasm and are converted to metadrenalines. For a phaeochromocytoma to become biochemically detectable, metnoradrenaline secretion needs to rise fourfold, whereas noradrenaline secretion needs to rise 15-fold. The prevalence of a sporadic phaeochromocytoma is low; therefore false-positive results exceed true-positive results. Assay sensitivity is high because it is important not to miss a possible phaeochromocytoma. The use of urine or plasma fractionated metadrenalines as the first-line test has been recommended due to improved sensitivity. A negative result excludes a phaeochromocytoma. Only after a sporadic phaeochromocytoma has been diagnosed biochemically is it cost effective to request imaging. Sensitivities and specificities of the assays differ according to pre-test probabilities of the presence of a phaeochromocytoma, with hereditary and incidentalomas having a higher pre-test probability than sporadic phaeochromocytoma. In conclusion, in screening for a possible phaeochromocytoma, biochemical investigations should be completed first to exclude or establish the diagnosis. The preferred biochemical screening test is fractionated metadrenalines, including methoxytyramine so as not to miss dopamine-secreting tumours.
journal_name
J Clin Patholjournal_title
Journal of clinical pathologyauthors
Barron Jdoi
10.1136/jcp.2009.071647subject
Has Abstractpub_date
2010-08-01 00:00:00pages
669-74issue
8eissn
0021-9746issn
1472-4146pii
jcp.2009.071647journal_volume
63pub_type
杂志文章,评审abstract::Sperm-agglutinating antibodies were present in three (2-6%) of 117 fertile men and in 19 (33-9%) of 56 men who had been vasectomized. Twenty-four of the 56 vasectomized men had been studied before vasectomy; sperm-agglutinating antibodies were present in one (4-3%) compared with eight (33-3%) after vasectomy. No sperm...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.29.12.1127
更新日期:1976-12-01 00:00:00
abstract::Hereditary breast cancer accounts for up to 5-10% of all breast carcinomas. Recent studies have demonstrated that mutations in two high-penetrance genes, namely BRCA1 and BRCA2, are responsible for about 16% of the familial risk of breast cancer. Even though subsequent studies have failed to find another high-penetran...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.2008.057950
更新日期:2008-10-01 00:00:00
abstract::Two unusual ovarian tumours thought to be of Wolffian identity, one of them malignant, are described. They showed packed combinations of adenopapillary, tubular, trabecular and diffuse patterns, a sharp and generalised periodic acid-Schiff (PAS)-positive basement membrane and areas of elastic network. A review of publ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.35.5.526
更新日期:1982-05-01 00:00:00
abstract::Four assays for the detection of alphafetoprotein (AFP) in the diagnosis of primary hepatocellular carcinoma (HCC) were evaluated. The frequency of AFP detection was compared in 89 HCC patients and in 71 patients with chronic active hepatitis/cirrhosis. Of the four assays, immunodiffusion, counterimmunoelectrophoresis...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.33.8.792
更新日期:1980-08-01 00:00:00
abstract::The sensitivity patterns to a number of antibiotic-impregnated discs of 126 strains of Gram-negative anaerobes and 36 strains of Gram-positive non-sporing anaerobes from various sources have been examined. The sensitivity patterns shown by Bacteroids fragilis and Bacteroides melaninogenicus were useful for the rapid i...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.28.5.388
更新日期:1975-05-01 00:00:00
abstract:BACKGROUND:Raised plasma ferritin concentrations occur unexpectedly during iron studies done by primary care physicians. Plasma ferritin concentration has been positively associated with alcohol use among men. AIM:To determine the post-test probability that men in the community with raised plasma ferritin concentratio...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.52.11.853
更新日期:1999-11-01 00:00:00
abstract:AIMS:To investigate the optimal method for the detection of campylobacters from stool samples by comparing selective culture with membrane filtration and the polymerase chain reaction (PCR). METHODS:Three hundred and forty three stool samples were investigated by each of the three methods mentioned above. Selective cu...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.55.10.749
更新日期:2002-10-01 00:00:00
abstract::Tumour tissue from 29 patients with primary brain lymphoma was reviewed to determine if there was an aetiological association between Epstein-Barr virus and polyclonal and monoclonal lymphoproliferations. The morphology and immunophenotype in 24 patients for whom paraffin wax embedded tissue was available were studied...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.43.3.220
更新日期:1990-03-01 00:00:00
abstract:BACKGROUND:The Wnt pathway is important in cell signalling transduction and is involved in the pathogenesis of multiple tumour types. A comprehensive analysis of the expression of Wnt signalling pathway proteins in mammary phyllodes tumours (PTs) has not been previously performed. AIMS:To evaluate the immunohistochemi...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2009.066977
更新日期:2009-11-01 00:00:00
abstract::Cytological diagnosis in a series of 153 skin lesions is presented. The diagnosis in each case has been compared with the clinical assessment and, where available, the biopsy result (85 lesions). Of 131 basal cell carcinomas, a cytological diagnosis was possible in 124 while biopsyl failed to identify two of the 73 le...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.32.4.361
更新日期:1979-04-01 00:00:00
abstract::A pseudolymphomatous reaction involving subcutaneous tissue and underlying skeletal muscle is described in a woman who was receiving phenytoin sodium and phenobarbitone. The histological appearance was of nodular, densely cellular tissue composed of histiocytes, plasma cells, lymphocytes, fibroblasts, and occasional p...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.31.8.761
更新日期:1978-08-01 00:00:00
abstract:AIMS:Evidence suggests that the presence of tumour necrosis is an adverse prognostic factor in renal cell carcinoma (RCC). However, it has also been shown that tumour regression, a microscopic feature associated with necrosis, may be a favourable short term prognostic factor in RCC. METHODS:Pathology reports of 253 RC...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2004.018846
更新日期:2005-01-01 00:00:00
abstract::A latex agglutination test for the detection of Pseudomonas pseudomallei antigen in urine was evaluated for the rapid diagnosis of melioidosis. With unconcentrated urine, antigen was detected in only 18% of patients with melioidosis overall. However, when urine was concentrated 100-fold, antigen was detected in 47% ov...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.48.2.174
更新日期:1995-02-01 00:00:00
abstract::One hundred and twenty-one rectal biopsies from 99 patients with carcinoma of the rectum or lower sigmoid colon were investigated using a high iron-diamine-Alcian blue technique for sulphated and non-sulphated acid mucins. It was found that in normal rectal mucosa sulphomucins are the main carbohydrate component of th...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.25.2.123
更新日期:1972-02-01 00:00:00
abstract::The applicability of a recently developed non-radioactive DNA labelling and detection method, which uses the digoxigenin (DIG) enzyme linked immunosorbent assay (ELISA) system, for the detection of viral infections in pathology specimens by in situ hybridisation, was examined. Its efficacy was compared with that of bi...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.43.10.806
更新日期:1990-10-01 00:00:00
abstract:AIM:To better understand the spectrum of primary lymphomas in the upper aerodigestive tract, a common site of extranodal lymphoma. MATERIALS AND METHODS:Lymphoma cases diagnosed at an institution in southern Taiwan from 1992 to 2007 were retrospectively studied with pathology and history review, immunohistochemistry, ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2010.081927
更新日期:2010-10-01 00:00:00
abstract::A post-mortem examination, in the case of a 34-year-old man dying suddenly from head injuries sustained in a road accident, showed early cirrhosis of the liver and associated splenomegaly 17 years after an attack of infective hepatitis. The histology of the thymus showed abnormal changes in the medulla, consisting of ...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.16.5.445
更新日期:1963-09-01 00:00:00
abstract:AIMS:To detect cells bearing BRAF mutations in colorectal tumour samples and peritoneal washings, using a mismatch ligation assay (MLA). METHODS:DNA from 46 colorectal tumours was studied. Part of exon 15 of the BRAF gene was amplified using the polymerase chain reaction, and T-->A mutations at codon 600 were detected...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2004.018655
更新日期:2005-04-01 00:00:00
abstract::Zygomycosis is not often diagnosed in the United Kingdom, and so the possible importance of the findings in a patient with disseminated zygomycosis who had been treated with chemotherapy for erythroleukaemia was not appreciated until histological examination of specimens obtained at necropsy provided a presumptive dia...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.38.9.1039
更新日期:1985-09-01 00:00:00
abstract:BACKGROUND:Gastric mucosa associated lymphoid tissue (MALT) lymphoma is a low grade B cell lymphoma histologically characterised by neoplastic B cells surrounding follicles in a marginal zone pattern and selectively infiltrating epithelium to form characteristic lymphoepithelial lesions. AIMS:To identify solitary epit...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.2004.023747
更新日期:2005-11-01 00:00:00
abstract::A study has been made by clinical methods and by bio-assay of the effectiveness of a régime for prophylaxis against tetanus. The two principal objects of the method were to ensure that active immunization was offered to all patients who had received antitoxin and to measure the effect of the combined administration of...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.18.1.23
更新日期:1965-01-01 00:00:00
abstract:AIM/BACKGROUND:Several studies have suggested that Helicobacter pylori which express CagA may be more virulent than those that do not, but limited populations have been studied to date. The aim of this study was to confirm and extend the association of CagA positive H pylori strains in a different geographical area and...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.49.10.829
更新日期:1996-10-01 00:00:00
abstract:AIMS:The localisation of the translocation breakpoint of the Ewing sarcoma family of tumours shows significant variability on relatively large regions of fusion partner genes. As a consequence, many alternative forms of EWSR1-ETS translocation exist which make the RNA-based molecular diagnostics of Ewing sarcoma family...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2012-201154
更新日期:2012-12-01 00:00:00
abstract::A locally developed, computer-based clinical chemistry laboratory system has been in operation since 1970. This utilises a Digital Equipment Co Ltd PDP 12 and an interconnected PDP 8/F computer. Details are presented of the performance and quality control techniques incorporated into the system. Laboratory performance...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.32.2.100
更新日期:1979-02-01 00:00:00
abstract::A histochemical method is described of differentiating between normal and neoplastic cells in plasma using the activity of various enzymes characteristic of plasma cells. It was found that in both types of cell increased or diminished activity of cytoenzymes is a useful means of distinguishing between normal and abnor...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.18.3.345
更新日期:1965-05-01 00:00:00
abstract::An inhibitor of plasminogen activator has been identified in human platelets by the technique of sodium dodecyl sulphate polyacrylamide gel electrophoresis and zymography. The inhibitor has a molecular weight of about 40 000 and is distinct from known plasma protease inhibitors. It is associated almost exclusively wit...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.38.7.825
更新日期:1985-07-01 00:00:00
abstract:OBJECTIVE:Acute B lymphoblastic leukaemia (B-ALL) is the most common type of childhood malignancy worldwide but little is known of its origin. Recently, many studies showed both a high incidence of Epstein-Barr virus (EBV) infection and high levels of CD4+CD25+Foxp3+(Treg cells) in children with B-ALL. In our study, we...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jclinpath-2016-203803
更新日期:2017-02-01 00:00:00
abstract::MUCs are glycoproteins with various roles in homeostasis and carcinogenesis. Among other actions, MUC1 may inhibit cell-cell and cell-stroma interactions and function as a signal transducer, participating in cancer progression. In contrast, MUC2 is normally found only in goblet cells, where it contributes to the prote...
journal_title:Journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1136/jcp.2003.013292
更新日期:2004-05-01 00:00:00
abstract::IgD myeloma is a rare disorder with a very poor prognosis. An unusual case is reported where prolonged remission was obtained. Immunohistochemical staining of the bone marrow trephine biopsy specimen proved invaluable in documenting early relapse. It is suggested that immunohistochemistry should be adopted more widely...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.47.8.773
更新日期:1994-08-01 00:00:00
abstract::Thirty two fire victims with smoke inhalation, with or without burns, and 26 control subjects had bronchoalveolar lavage performed. Cell yields and differential cell counts were assessed. All patients and controls were cigarette smokers. Patients with smoke inhalation (SI) injury generally showed higher total bronchoa...
journal_title:Journal of clinical pathology
pub_type: 杂志文章
doi:10.1136/jcp.43.1.43
更新日期:1990-01-01 00:00:00