Recently, several chromosome banding techniques based on fluorescence in situ hybridization (FISH) have been developed for the human and the mouse genome. In contrast to the standard chromosome banding techniques presently used, giving a protein-related banding pattern, those FISH techniques are DNA-specific. Currently the FISH banding methods are still under development and no high resolution ...

introduction: fluorscence in situ hybridization (fish) enables specific detection of unique sequences of varying length, chromosomal regions or entire chromosomes within metaphase or interphase cells. recent developments in this technology permit the rapid mapping and ordering of dna fragments on single metaphase chromosome bands. the technique of fish incorporates several stages including: pro...

Multicolor karyotyping technologies, such as spectral karyotyping (SKY) (Schröck et al.1996; Liyanage et al. 1996) and multiplex (M-) FISH (Speicher et al. 1996), have proved to be extremely useful in prenatal, postnatal, and cancer cytogenetics. However, these technologies have inherent limitations that, in certain situations, may result in chromosomal misclassification. In this report, we pre...

Genetic aspects of a 28 year-old female patient with typical morphological and clinical features of acute promyelocytic leukemia is presented. Pml/rara fusion transcript and a complex translocation involving chromosomes 5, 15 and 17 were detected by fluorescence in situ hybridization (FISH) technique which was applied as in adjunct to conventional cytogenetics. The patient deceased soon in spit...

Acknowledgment: We thank Dr Ken Maclean, Clinical Geneticist, Gutav Nossal NH & MRC scholar. Victor Chang Cardiac Research Institute, Australia and Dr Gregory Peters Luke St.Heaps, of the Cytogenetics Dept, Children’s Hospital at Westmead, Sydney, Australia, for carrying out all of the FISH studies described herein. Contributors: SK made the diagnosis, was responsible for literature search; SBD...

Chronic lymphocytic leukemia (CLL) is the most common leukemia in adults in the United States, with more than 16,000 people expected to be diagnosed with CLL in 2012. Most patients with CLL do not require treatment at diagnosis. Various genetic/molecular markers to help with prognostication have been established and validated and are routinely used in clinical practice.[1] These include β2-micr...

he introduction of high resolution chromosome banding at the beginning of the eighties significantly improved the techniques for cancer cytogenetics. New criteria for classification and monitoring of leukemia and lymphoma have been established, and new insights into the understanding of the genetic bases of malignancies have been gained. l The limits of classical cytogenetics, however, are dete...

Chromosome microdissection is a technique in which whole chromosomes or chromosomal segments are dissected under an inverted microscope yielding chromosome-specific sequences. Several protocol modifications introduced during the past 15 years reduced the number of chromosomes required for most applications. This is of particular interest to fish molecular cytogenetics, since most species presen...

BACKGROUND AND OBJECTIVES Splenic marginal zone B-cell lymphoma (SMZBCL) has clinical, immunophenotypic and histologic features distinct from other B-cell malignancies, but few chromosome studies have been previously reported. In the present study we performed conventional cytogenetics and in situ hybridization studies in 47 patients with SMZBCL. DESIGN AND METHODS We studied 47 cases of sple...