http://www.neogenomics.com - NeoGenomics performs tests using a number of methodologies and technologies. Below you will find more information about the types of test available. You can find out more about each testing methodology by clicking on the links below. Fluorescence in-situ Hybridization (FISH) is a branch of cancer genetics that focuses on detecting and locating the presence or absence of specific DNA sequences on chromosomes. FISH is also referred to as Molecular Cytogenetics. NeoGenomics BRAF Mutation Analysis in Melanoma provides comprehensive analysis of the critical region of BRAF.