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  • Title: Molecular diagnosis in dermatopathology: what makes sense, and what doesn't.
    Author: Braun-Falco M, Schempp W, Weyers W.
    Journal: Exp Dermatol; 2009 Jan; 18(1):12-23. PubMed ID: 19054055.
    Abstract:
    Molecular techniques have provided us with a wealth of information about biological events in healthy individual, and improved tremendously our understanding about the pathogenesis of a huge variety of cutaneous diseases. Those methods have originally been invented to support basic scientific investigations on a molecular level and are translated increasingly into sophisticated diagnostic tools changing the classic paradigm of diagnostic pathology; among them are immunohistochemistry (IHC), polymerase chain reaction (PCR), G-banding, loss of heterozygosity, fluorescence in situ hybridization (FISH), chromogen in situ hybridization (CISH), comparative genomic hybridization on chromosomes and microarray technology. Some of them such as IHC and PCR have already been standardized to a level that allows its utility in daily routine diagnostics for several dermatological diseases. For others like array-based technologies, their optimal indications await to be fully determined. These ancillary methods have the great potential to contribute important new information to challenging cases, and will help to improve diagnostic accuracy particularly in cases in which conventional histopathology is ambiguous. Thus, they will broaden our armamentarium for diagnostic pathology. Herein, some key techniques will be reviewed and their applicability towards the diagnosis of dermatological diseases critically discussed.
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