Abstract:
:CD45/side scatter (SS) gating is widely used for isolating blasts by flow cytometry (FC). However, other cells contaminate the "blast gate" (BG); CD45/SS gating is thus imprecise, particularly when there are few blasts. We studied the BG contents in 21 myelodysplastic syndromes (MDSs), 14 myeloproliferative neoplasms (MPNs), 7 chronic myelomonocytic leukemias (CMMLs), and 40 nonneoplastic control samples using 4-color FC with cluster analysis. There were no significant differences across groups in the median percentage of BG events represented by blasts (14.7%-22%), granulocytes (23.3%-33.2%), lymphocytes (2.1%-3.2%), and erythroids (1.0%-9.8%). Monocytes were a larger percentage of BG events in CMML (24.2%). Basophils averaged 35.4% of the BG in MPNs. The percentage of blasts within the BG averaged 94.2% in control samples vs 88.2% in MDSs and 80.7% in CMMLs. Blasts averaged about 20% of events in the BG. About 10% to 20% of blasts fell outside the BG in CMMLs and MDSs. Our data highlight pitfalls in using a traditional BG for blast analysis in nonacute myeloid disorders.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Harrington AM,Olteanu H,Kroft SHdoi
10.1309/AJCPN4G1IZPABRLHsubject
Has Abstractpub_date
2012-05-01 00:00:00pages
800-4issue
5eissn
0002-9173issn
1943-7722pii
137/5/800journal_volume
137pub_type
杂志文章abstract::Histiocytosis-X cells were obtained at autopsy from the lungs and lymph nodes of a patient who died of the disseminated infantile form of this disease (Letterer-Siwe disease). The ability of these cells to synthesize and release prostaglandins was investigated in culture, by prelabeling the cell lipids with [14C] arac...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/75.2.243
更新日期:1981-02-01 00:00:00
abstract::A girl, aged 2 years, 11 months, who had pain and swelling of the proximal humerus, was found to have osteoblastic osteogenic sarcoma of the humerus. Among 937 consecutive patients with osteogenic sarcoma examined at the Mayo Clinic, she is the youngest child seen, as well as only the sixth child younger than 6 years...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/63.6.886
更新日期:1975-06-01 00:00:00
abstract::Elevated T-cell leukemia-1 (TCL1) oncoprotein expression might promote human Burkitt lymphoma (BL) because increased TCL1 causes Burkitt-like lymphomas in TCL1 transgenic mice. Epstein-Barr virus (EBV) infection has been implicated as a cause of increased TCL1 expression in multiple BL cell lines, suggesting a critica...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/77V7U4E03V69QHRR
更新日期:2005-10-01 00:00:00
abstract::Oxidant-antioxidant balance is known to regulate growth factors and invasion of tumor cells. Manganese superoxide dismutase (MnSOD), copper zinc SOD (CuZnSOD), and extracellular SOD (ECSOD), the first-line antioxidant defenses, were studied in lung carcinomas by immunohistochemical analysis (n = 139, 56, and 37, respe...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/A45Q-HB0Q-RRX6-CT9A
更新日期:2004-09-01 00:00:00
abstract::Certain new hematologic findings in eight homosexual or bisexual patients with the acquired immune deficiency syndrome (AIDS) are presented. All eight patients manifested a normochromic, normocytic anemia, and six of eight had granulocytopenia during their hospitalization. The other two had low-normal granulocyte coun...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/84.2.144
更新日期:1985-08-01 00:00:00
abstract::The finding of monoclonal B-cell lymphocytosis (MBL) raises questions on the nature of clonal cell expansion and its risk of progression. We identified and characterized 7 cases of clinically benign clonal B-cell lymphocytosis. The clonal lymphocytes were clearly of CD5- and non-chronic lymphocytic leukemia (CLL) phen...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/WB56ET6AGM44TM5T
更新日期:2007-08-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/79.4.431
更新日期:1983-04-01 00:00:00
abstract:OBJECTIVES:We wished to discover (1) in what circumstances surgeons wished to request frozen sections (FSs) on thyroid nodules having a prior fine needle aspiration (FNA) and the preoperative plan in these cases; (2) what the surgeons did with the information provided by FS and (3) in what types of cases was value adde...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqw042
更新日期:2016-05-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/112.3.351
更新日期:1999-09-01 00:00:00
abstract::The ability of the cervical Papanicolaou (Pap) smear to detect cervicitis associated with Chlamydia trachomatis was investigated. Cultures and cervical cytology samples were obtained from 487 women seen at the Mayo Clinic Department of Obstetrics and Gynecology and at the Sexually Transmitted Disease clinic of the Olm...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/79.4.421
更新日期:1983-04-01 00:00:00
abstract::A case of septicemia caused by Pseudomonas paucimobilis is reported. This represents the first definitive case of disease produced by this yellow-pigmented, nonfermentative bacillus. ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/72.5.882
更新日期:1979-11-01 00:00:00
abstract::The cytologic features of fine-needle aspiration specimens from 16 breast carcinomas that closely simulated benign lesions were analyzed and compared to smears from fibroadenomas and fibrocystic change. No combination of features was found that accurately separated all benign and malignant cases. Many nuclei with disc...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/98.2.155
更新日期:1992-08-01 00:00:00
abstract::This report describes the use of counterimmunoelectrophoresis (CIE) as a method of detecting activation of the complement system. With this technic small amounts of C3 split products (C3c/d) can be detected in plasma samples by specific precipitation with antiserum in less than two hours. The CIE technic is a highly s...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/69.4.440
更新日期:1978-04-01 00:00:00
abstract::High-volume (200 ml) platelet concentrates prepared by discontinuous-flow centrifugation, with counts as high as ca. 2.0 x 10(12)/l, were stored in either 600 ml-capacity polyvinylchloride bags or 800-ml capacity polyethylene bags. Both polyvinylchloride and polyethylene bags appeared adequate for 24-hour storage of p...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/73.3.397
更新日期:1980-03-01 00:00:00
abstract::The development of a consistent strategy for the analysis of oncogene expression at the cellular level is essential for understanding the roles of these genes in the development and progression of human neoplasia. Detection of the neu oncogene products in breast carcinoma was selected as a model for analysis of oncoge...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/94.2.125
更新日期:1990-08-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPI72YAXRHYHEE
更新日期:2010-04-01 00:00:00
abstract::Establishment of a procedure termed cerebrospinal fluid (CSF) TRAP ("Transport and Rapid Accessioning for Additional Procedures") allows clinicians to appropriately store, at -75 degrees C, and rapidly access CSF specimens. The CSF TRAP enhances patient care by decreasing the need for repeat lumbar punctures and provi...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/90.6.707
更新日期:1988-12-01 00:00:00
abstract::Autopsy reports of 231 adult autopsies were examined for clinically unexpected diagnoses. Analysis of data showed that 97 of 188 autopsy diagnoses were clinically unexpected. The diagnosis of pulmonary embolism was clinically the most frequently missed diagnosis relative to its actual occurrence. Also noted was that t...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/93.4.486
更新日期:1990-04-01 00:00:00
abstract:OBJECTIVES:BRAF V600E mutation is characteristic of hairy cell leukemia (HCL). A V600E mutation-specific antibody, VE1, has been recently developed. We studied the diagnostic utility of this antibody in HCL and compared it with other B-cell neoplasms. METHODS:VE1 activity was assessed using immunohistochemistry in 90 ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPQLQ89VXTVWKN
更新日期:2015-01-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/MC7QRGPTV0LRR98X
更新日期:2007-11-01 00:00:00
abstract::Hyperparathyroidism may occasionally present as a neck mass resulting from cystic change in a parathyroid adenoma. We report an unusual instance of hyperparathyroidism presenting as a palpable, but asymptomatic hyperplastic parathyroid gland cyst. We conclude that hyperplastic parathyroid glands may undergo cystic deg...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/77.1.104
更新日期:1982-01-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/103.5.618
更新日期:1995-05-01 00:00:00
abstract::The p63 gene, a member of the p53 family, is an epithelial marker expressed in embryonic ectoderm, breast myoepithelium, prostate, oral epithelium, epidermis, and urothelium. The DeltaN-p63 isoforms of p63, which are believed to behave as oncogenes, are expressed in squamous cell carcinoma, basal cell carcinoma, and t...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/2GAYKPDDM85P2VEW
更新日期:2007-03-01 00:00:00
abstract::Quantitative morphometry was used to evaluate the homogeneity of lymphoid cell populations in fine-needle aspiration cytology smears of lymph nodes from eight non-Hodgkin's lymphomas and four benign lymphoid proliferations. Using the standard deviation of log-transformed nuclear areas as the measure of lymphoid cell h...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/92.4.458
更新日期:1989-10-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPRVDCKI5CE2CH
更新日期:2011-09-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/M1FE-DDVX-2V81-K5MP
更新日期:2002-06-01 00:00:00
abstract::We retrospectively reviewed the immunophenotypic profile of 75 cases of lymphoplasmacytic lymphoma/Waldenström macroglobulinemia (LPL/WM) analyzed by flow cytometry. All patients had monoclonal IgM (median, 2,100 mg/dL [21 g/L]) in serum and were considered clinically to have WM. The neoplastic cells, in all cases, ex...
journal_title:American journal of clinical pathology
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更新日期:2005-09-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/103.4.380
更新日期:1995-04-01 00:00:00
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journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/80.6.839
更新日期:1983-12-01 00:00:00
abstract::Because of the unusual presentation of pernicious anemia in many black women, a further characterization of this disease among the different racial groups was undertaken. The following were found. (1) Black women under the age of 50 years had a significantly lower prevalence of anti-parietal cell antibody than did "Eu...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/75.3.291
更新日期:1981-03-01 00:00:00