Overrepresentation of 1q21-23 and 12q13-21 in lipoma-like liposarcomas but not in benign lipomas: a comparative genomic hybridization study

Cancer Genet Cytogenet. 1997 Nov;99(1):14-8. doi: 10.1016/s0165-4608(96)00436-0.


Twenty lipomatous tumors, including eight lipoma-like liposarcomas and 12 benign lipomas, were analyzed using comparative genomic hybridization (CGH). DNA sequence copy number changes detected in five lipoma-like liposarcomas (mean, 1.1 aberrations/tumor; range, 0-2) consisted of gains of 12q13-21 (five tumors) and 1q21-23 (four tumors). Two of the tumors showed high-level amplification at 12q14-21 and one tumor at 1q21-22. No copy number changes were found in lipomas. Overrepresentation of 1q and 12q sequences was a recurrent finding in lipoma-like liposarcomas but not in lipomas. Thus, CGH may help in the differential diagnosis of low-grade or borderline adipose neoplasms.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Chromosomes, Human, Pair 1*
  • Chromosomes, Human, Pair 12*
  • Female
  • Gene Expression Regulation, Neoplastic
  • Humans
  • In Situ Hybridization / methods*
  • Lipoma / genetics*
  • Liposarcoma / genetics*
  • Male
  • Middle Aged