Abstract:
:It is said that HER2/neu expression by immunohistochemical analysis varies with the time of fixation. The purpose of this pilot study was to determine the impact of the length of fixation in 10% buffered formalin on the expression of HER2/neu by immunohistochemical analysis. We studied tissue samples from 10 invasive breast cancer cases after fixation for 3, 48, 72, 96, and 120 hours. The tissue was processed immediately after fixation, resembling routine practice. The 50 resulting blocks were then batch stained with PATHWAY HER2/neu clone 4B5 rabbit monoclonal antibody using the Ventana Ultraview DAB detection kit in a Ventana BenchMark XT processor (Ventana, Tucson, AZ). The stained slides were reviewed and scored. We found no significant difference in the intensity of the stain or the percentage of cells stained regardless of the time in fixation. Fixation times between 3 and 120 hours in 10% buffered formalin do not appear to have an impact on the expression of HER2/neu by immunohistochemical analysis.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Ibarra JA,Rogers LWdoi
10.1309/AJCPAIJPSN4A9MJIsubject
Has Abstractpub_date
2010-10-01 00:00:00pages
594-6issue
4eissn
0002-9173issn
1943-7722pii
134/4/594journal_volume
134pub_type
杂志文章abstract::A case of metastatic ameloblastoma of the maxilla with secondary hypercalcemia in a 54-year-old man is presented. After treatment with surgery, chemotherapy, and radiotherapy, the patient was found to have multiple metastases and severe hypercalcemia associated with high levels of parathormone-like substance in the pe...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/75.4.585
更新日期:1981-04-01 00:00:00
abstract::Previous reports have indicated that patients with severe acute respiratory syndrome (SARS)-associated coronavirus infection could develop atypical pneumonia with fulminant pulmonary edema. However, the target cells of SARS viral infection have not been characterized in detail. We report the pathologic findings of the...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/C0ED-U0RA-QBTX-BHCE
更新日期:2004-04-01 00:00:00
abstract::We investigated the pathologic significance of ductular reactions in chronic liver diseases with respect to cellular senescence. The expression of senescence-associated markers (p16(INK4a) and p21(WAF1/Cip1)), cell proliferation, cell cycle markers (cyclin D and cyclin A), and neural cell adhesion molecule (NCAM) was ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPWMX47TREYWZG
更新日期:2010-02-01 00:00:00
abstract::Several laboratory methods are currently available for the detection of barbiturates, but few are suitable for emergency use, The authors evaluated use of an ultraviolet spectrophotometric method as a screening procedure and compared the results with results obtained by other barbiturate methods (colorimetric, gas-li...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/66.5.823
更新日期:1976-11-01 00:00:00
abstract::Delta checking is a laboratory information system (LIS)-based tool that detects patient and laboratory quality control errors. By using hemoglobin A1c (HbA1c) data, we developed a novel approach to summarizing and presenting patient Delta values to address limitations of current Delta check algorithms. Delta values we...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/VM6FVF6GGCYYJ9BV
更新日期:2008-08-01 00:00:00
abstract::In situ hybridization for the Y chromosome (Y-ISH) was used to identify residual host cells in the peripheral blood of 51 recipients of sex-mismatched allogeneic marrow not depleted of T cells following conditioning with high-dose cyclophosphamide and total body irradiation (TBI). One patient who rejected the graft sh...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/95.2.201
更新日期:1991-02-01 00:00:00
abstract::A 67-year-old man presented with a malignant tumor involving abdominal lymph nodes, spleen, liver, and lungs, with associated protracted fever and night sweats. The tumor consisted of large pleomorphic cells, often surrounding microabscesses. Intracytoplasmic S100 protein, surface T6, Leu-3a (T4), and HLA-DR antigens ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1093/ajcp/85.6.739
更新日期:1986-06-01 00:00:00
abstract::A unilateral multicystic mass in the connective tissue adjacent to the vas deferens in a 46-year-old man is reported. Anatomically, it was distinct from the epididymis and vas and contained no sperm. The epithelial lining was simple, ciliated, and cuboidal to columnar. The cysts were surrounded by connective tissue co...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/101.4.543
更新日期:1994-04-01 00:00:00
abstract::Reports of sex steroid receptor expression in chordoma suggest that these tumors may be responsive to hormone manipulation therapy. Immunohistochemical stains for estrogen receptor (ER)-alpha, ER-beta, progesterone receptor (PR), androgen receptor (AR), and cyclooxygenase 2 (COX-2), were performed on a tissue microarr...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/8T2NPHLK5X5WQ3E7
更新日期:2007-09-01 00:00:00
abstract::We assessed the Sysmex UF-50 for reproducibility of results and carryover rate by performing between- and within-run precision analyses on 315 urine samples, evaluated the feasibility of using the UF-50 to measure urinary cellular and noncellular components by comparing results from the UF-50 with results of manual ur...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/RT7X-EMGF-G8AV-TGJ8
更新日期:2001-04-01 00:00:00
abstract:OBJECTIVES:Increased frequency of hyperamylasemia has previously been reported in human immunodeficiency virus (HIV)-positive patients, but studies determined total amylase activity and were performed before the introduction of highly active antiretroviral therapy (HAART). We evaluated the frequency of pancreatic hyper...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqv020
更新日期:2016-01-01 00:00:00
abstract::An atypical form of macrocytosis termed volumetric macrocytosis is described. In contrast to the macrocyte associated with megaloblastic anemia and the pseudomacrocyte caused by viscoelastic defects, the volumetric macrocyte is characterized by an increased mean corpuscular volume and a normal cell diameter. The volum...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/85.3.337
更新日期:1986-03-01 00:00:00
abstract::Patients with nonhemolytic Lewis antibodies in the serum were transfused on the basis of major crossmatch compatibility alone. No adverse clinical affects were noted when 33 such patients received a total of 230 transfusions. Considerable savings in technologist time and reagent cost were realized by adopting this pol...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/76.3.294
更新日期:1981-09-01 00:00:00
abstract::Urine dipstick jars often are left uncapped, which led the authors to wonder what effect prolonged air exposure might have on dipstick accuracy. Unexpired Ames Multistixs (Miles Inc., Elkhart, IN) were exposed to ambient air for intervals of up to eight weeks and were used to test urine for the presence or absence of ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/96.3.398
更新日期:1991-09-01 00:00:00
abstract::Typical yeast-phase cells of Blastomyces dermatitidis have a characteristic appearance in tissue sections. Fungal morphologic variation occurs infrequently in the lesions of blastomycosis, yet it can complicate the differential diagnosis, particularly if fresh tissue is not available for microbiologic culture. The aut...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/93.4.575
更新日期:1990-04-01 00:00:00
abstract::Immunophenotypic analysis is useful in distinguishing reactive from neoplastic lymphoproliferations, particularly when tissue is limited or histologic findings are equivocal. Surface membrane immunoglobulin (SmIg) light chain restriction in B cells is especially helpful in documenting clonality, and the loss of SmIg b...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/5R76B01VCATQLBK6
更新日期:2005-07-01 00:00:00
abstract::Acute exacerbations of idiopathic pulmonary fibrosis/cryptogenic fibrosing alveolitis (IPF/CFA) are rare and typically terminal events, but their relationship to underlying patterns of idiopathic interstitial pneumonias is unknown. We reviewed autopsy material from patients who died of diffuse alveolar damage in the c...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/UVAR-MDY8-FE9F-JDKU
更新日期:2003-05-01 00:00:00
abstract::Data from 2.5 million glucose analyses on pools of lyophilized human quality control serum were used to evaluate analyte stability in the prereconstitution phase. Input information was from laboratories in Regional Quality Control Programs that use CAP Quality Assurance Service (QAS) data processing. Of 31 pools in us...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:
更新日期:1982-10-01 00:00:00
abstract::Posttransplantation lymphoproliferative disorders (PT-LPDs) occurring in T-cell depleted (TCD) allogeneic bone marrow transplant recipients seem to be different from those that arise in solid organ recipients in their early development, the high incidence of extensive dissemination at presentation, and their aggressiv...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/107.4.419
更新日期:1997-04-01 00:00:00
abstract::The role of fine-needle aspiration (FNA) in the diagnosis of breast carcinoma is established. We evaluated whether the degree of cellular dyscohesion and the nuclear grade in FNA material of breast carcinomas are reliable prognostic predictors for ipsilateral axillary lymph node metastasis. FNA specimens from 98 women...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/PR6K-7RXQ-NJUD-443Q
更新日期:2001-02-01 00:00:00
abstract::The determination of tumor cell estrogen receptor (ER) expression status by immunohistochemical analysis has become standard practice, yet assay reproducibility has not been assessed adequately. By using a breast cancer tissue microarray, we examined interlaboratory variability in ER reporting. A 2-fold redundant tiss...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/PEF8-GL6F-YWMC-AG56
更新日期:2002-05-01 00:00:00
abstract::Blast-like cells in the cerebrospinal fluid (CSF) of neonates have been identified and previously suggested to be of germinal matrix origin. Twelve additional CSF specimens with blast-like cells collected at the University of Texas Medical Branch, Galveston, between 1985-1992 were analyzed. The cytological features of...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/105.5.544
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVES:To characterize error rates for genetic test orders between medical specialties and in different settings by examining detailed order information. METHODS:We performed a retrospective analysis of a detailed utilization management case database, comprising 2.5 years of data and almost 1,400 genetic test orde...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqw105
更新日期:2016-08-01 00:00:00
abstract::Cytologic features of the cell-stroma interface are useful in distinguishing between monomorphic adenomas of the basal cell type and adenoid cystic carcinoma. In basal cell adenomas, the collagenous stroma interdigitates with adjacent cells, whereas in adenoid cystic carcinoma, the two are separated by a sharp smooth ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1093/ajcp/106.1.35
更新日期:1996-07-01 00:00:00
abstract::Forty-three laboratories participated in an interlaboratory testing program offered by the College of American Pathologists for the radioimmunoassay (RIA) of carcinoembryonic antigen (CEA). Thirty correctly reported a sample with 1.9 ng of endogenous CEA per ml as less than 2.5 ng. For samples with added exogenous CEA...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:
更新日期:1977-07-01 00:00:00
abstract::A man was hospitalized with bacteremic Achromobacter xylosoxidans type IIIa pneumonia. The authors are aware of no previously reported similar infections caused by this bacterium. A clinical cure was achieved with a combination of carbenicillin and kanamycin therapy. Microtiter susceptibility testing revealed that car...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/70.4.712
更新日期:1978-10-01 00:00:00
abstract:OBJECTIVES:Peritoneal mesothelial cysts have been reported under various terms, including benign cystic mesothelioma, usually in the form of case reports/series, whereas extraperitoneal cases are rarely reported. Our objective was to report the detailed characteristics of cystic lesions of the serosal cavities. METHOD...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqaa189
更新日期:2020-12-01 00:00:00
abstract::A test for the detection of antibodies to HTLV-III is available and will be widely used to screen donated blood to prevent transfusion-associated acquired immunodeficiency syndrome (AIDS). Based upon the sensitivity and specificity, the authors calculated the expected predictive values for different groups of asymptom...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/85.6.700
更新日期:1986-06-01 00:00:00
abstract::Estrogen and progesterone receptors were studied in fine-needle aspiration biopsy specimens of 56 patients with primary, recurrent, or metastatic breast carcinoma. The ligands, 17 B-estradiol-6-carboxymethyloxine-bovine serum albumin fluorescein isothiocyanate (FITC-BSA estradiol) and hydroxyprogesterone hemisuccinate...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/95.1.35
更新日期:1991-01-01 00:00:00
abstract::This study sought to compare Multiplate impedance platelet aggregometry (IPA) with light transmission aggregometry (LTA) and the PFA-100 for determining the prevalence of residual platelet reactivity (RPR) by the Multiplate IPA in 297 patients with acute coronary syndrome receiving dual antiplatelet therapy. Aggregati...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPTE3K1SGAPOIZ
更新日期:2009-06-01 00:00:00