Abstract
Perineuriomas are rare peripheral nerve sheath tumors with one or few chromosomal rearrangements or numerical changes. Two main types and three subtypes have been defined but with few specific genetic associations. Chromosome 10 aberrations have been found in three cases of the sclerosing perineurioma subtype. Chromosome 22 abnormalities have been described in different types of perineurioma. None of these aberrations has been described at the molecular level. We report on a complex rearrangement characterized by fluorescence in situ hybridization and array-comparative genome hybridization, which revealed submicroscopic deletions at 2p23 and 9q34 that involved the ABL1 gene in a soft tissue perineurioma case.
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