Track topics on Twitter Track topics that are important to you
: Fluorescence in situ hybridization (FISH) results from fine needle aspirates (FNA) of B-cell non-Hodgkin lymphomas (NHLs) were reviewed to 1) investigate the value added by using specific gene rearrangement probes to lymphoma diagnosis, prognosis, and subtyping; and 2) evaluate the prevalence of cytogenetic alterations other than specific translocations.
: FISH results from assays performed on cytospin preparations from NHL FNAs over a 6-year period (2003-2009) were selected. Immunophenotyping, clinical data, and cytomorphologic data were reviewed according to the current World Health Organization (WHO) classification system. Hybridized probes, the purpose for the assay (subtyping or prognosis), and the cytogenetic abnormalities observed were retrieved from cytology reports. Data was categorized according to specific rearrangements and other chromosomal abnormalities.
: Successful results were obtained in 284 (95.3%) of 298 cases from 282 patients. Abnormalities were found in 216 (76%) cases and 68 (24%) did not show alteration. Among cases submitted for subtyping, 198 showed FISH-positive results, and specific gene rearrangements were found in 122 (61.6%) cases as follows: follicular 82, mantle cell 21, marginal zone 3, "dual hit" 13, and Burkitt lymphoma 3. In 21 cases, abnormalities were useful for prognosis. Nonspecific alterations alone or in combination with translocations were found in 98 cases.
: FISH performed on cytospin preparations was useful for confirmation of specific subclasses of NHL and may also provide valuable prognostic information. Cytogenetic abnormalities other than specific translocations were frequently found and could provide supportive evidence for a definitive diagnosis of lymphoma in FNA. Cancer (Cancer Cytopathol) 2010. © 2010 American Cancer Society.
Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada.
This article was published in the following journal.
Name: Cancer cytopathology
Cyanobacteria contain pigments, which generate auto-fluorescence that interferes with fluorescence in situ hybridization (FISH) imaging of cyanobacteria. We describe simple chemical treatments using C...
Fluorescence in situ hybridization (FISH) techniques are used for the targeted investigation of microduplication, microdeletion and structural rearrangements. More recently FISH techniques using probe...
The most widely used methods for determination of HER2/neu status in breast carcinoma are immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH). Both techniques are associated with ...
Fluorescence in situ hybridization (FISH) has improved the diagnostic performance of cytology for evaluation of malignant biliary strictures in the US and Europe. The utility of FISH for diagnosis of ...
To explore the effect of false positive signals during detection of BCR/ABL fusion gene by fluorescence in situ hybridization (FISH), and develop a method for calibration.
In this study, investigators assess, using Fluorescence in situ Hybridization (FISH) and Comparative Genomic Hybridization (CGH) arrays for Preimplantation Genetic Screening (PGS), the inc...
Primary objective of the study is to evaluate the correlation between level of HER2-neu gene amplification evalued by dual-color Fluorescent in-situ hybridization (FISH) test and time to p...
This clinical trial studies whether esophageal cytology plus fluorescence in situ hybridization (FISH) is equal to or better than esophago-gastro-duodenoscopy (EGD) or upper endoscopy for ...
The primary objective of this study is to estimate whether the addition of trastuzumab to paclitaxel and carboplatin chemotherapy improves progression free survival when compared to paclit...
The purpose of the study is the identification of amplification level in human breast tissue. The imaging system is intended for diagnostic use as an aid to the pathologist in the detectio...
A type of IN SITU HYBRIDIZATION in which target sequences are stained with fluorescent dye so their location and size can be determined using fluorescence microscopy. This staining is sufficiently distinct that the hybridization signal can be seen both in metaphase spreads and in interphase nuclei.
The simultaneous identification of all chromosomes from a cell by fluorescence in situ hybridization (IN SITU HYBRIDIZATION, FLUORESCENCE) with chromosome-specific florescent probes that are discerned by their different emission spectra.
The use of molecularly targeted imaging probes to localize and/or monitor biochemical and cellular processes via various imaging modalities that include RADIONUCLIDE IMAGING; ULTRASONOGRAPHY; MAGNETIC RESONANCE IMAGING; fluorescence imaging; and MICROSCOPY.
A technique that localizes specific nucleic acid sequences within intact chromosomes, eukaryotic cells, or bacterial cells through the use of specific nucleic acid-labeled probes.
Fish of the genera ONCORHYNCHUS and Salmo in the family SALMONIDAE. They are anadromous game fish, frequenting the coastal waters of both the North Atlantic and Pacific. They are known for their gameness as a sport fish and for the quality of their flesh as a table fish. (Webster, 3d ed).
Hodgkin Lymphoma is a disorder caused by malignant proliferation of lymphocytes, which contain characteristic mirror-image nuclei (Reed-Sternburg cells). The resulting lymphadenopathy can be limited to a single lymph node region (Stage 1) or spread...
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...