ISCN 1991 : guidelines for cancer cytogenetics : supplement to An international system for human cytogenetic nomenclature : recommendations of the Standing Committee on Human Cytogenetic Nomenclature, Subcommittee on Cancer Cytogenetics

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ISCN 1991 : guidelines for cancer cytogenetics : supplement to An international system for human cytogenetic nomenclature : recommendations of the Standing Committee on Human Cytogenetic Nomenclature, Subcommittee on Cancer Cytogenetics

subcommitte, Felix Mitelman, chair and editor

Karger, c1992

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Description and Table of Contents

Description

The immense amounts of new data accumulated on neoplasia-associated chromosome aberrations have revealed certain inadequacies in the system now used universally to describe tumour karyotypes. Consequently, the Standing Committee on Human Cytogenetic Nomenclature decided to establish new guidelines to avoid confusion in the literature and to improve communication among scientists. This report proposes recommendations and simple, uniform guidelines for the description of most acquired clonal karyotypic abnormalities. The guidelines are based on normal chromosomes and constitutional chromosome aberrations (ISCN 1985). However, the definitions of some terms have been slightly modified and some new terms describing aberrations found primarily in neoplastic cells have been added. Approved by the ISCN Standing Committee, the report incorporates and supersedes all previous ISCN recommendations on cancer cytogenetics in man. The Committee recommends that this nomenclature system also be used in the description of acquired chromosome aberrations in neoplasms of other species.

Table of Contents

  • General considerations
  • modal number
  • clones and clonal evolution
  • order of chromosome abnormalities in the karyotype
  • constitutional karyotype
  • numerical chromosome abnormalities
  • structural chromosome abnormalities
  • specification of chromosome rearrangements
  • marker chromosomes
  • multiple copies of rearranged chromosomes
  • uncertainty in chromosome or bank designation
  • members of the ISCN Standing Committee and Subcommittee.

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