Format

Send to

Choose Destination
See comment in PubMed Commons below
Cancer Genet. 2013 Jul-Aug;206(7-8):299-303. doi: 10.1016/j.cancergen.2013.06.004. Epub 2013 Aug 12.

Cytogenetic and single nucleotide polymorphism array findings in soft tissue tumors in infants.

Author information

  • 1Department of Clinical Genetics, University and Regional Laboratories, Skåne University Hospital, Lund University, Lund, Sweden; Department of Pathology, University and Regional Laboratories, Skåne University Hospital, Lund, Sweden. Electronic address: charles.walther@med.lu.se.

Abstract

Soft tissue tumors in children under one year of age (infants) are rare. The etiology is usually unknown, with external factors or congenital birth defects and hereditary syndromes being recognized in only a small proportion of the cases. We ascertained the cytogenetic findings in 16 infants from whom tumor tissue had been obtained during a 25-year period. In eight of them, single nucleotide polymorphism (SNP) array analyses could also be performed. No constitutional chromosome aberrations were detected, and assessment of clinical files did not reveal any congenital or later anatomical defects. Three tumors--one infantile fibrosarcoma, one embryonal rhabdomyosarcoma, and one angiomatoid fibrous histiocytoma (AFH)--had abnormal karyotypes. As the AFH had an exchange between chromosome arms 12p and 15q, additional fluorescence in situ hybridization and reverse transcription-polymerase chain reaction analyses were performed, unexpectedly revealing an ETV6/NTRK3 fusion. Three of the eight tumors, including the AFH with an abnormal karyotype, analyzed by SNP array showed aberrations (loss of heterozygosity or imbalances). The present series suggests that the addition of array-based technologies is valuable for detecting underlying pathogenetic mechanisms.

KEYWORDS:

Cytogenetics; SNP array; infant; soft tissue

PMID:
23938179
DOI:
10.1016/j.cancergen.2013.06.004
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center