93804-3

LOINC 2.82

Chromosome 12 copy number/nucleus in Tissue by FISH

Chr 12 copy num/nucleus EntNum Tiss FISH

Definition

  • Aneusomy (varying number) of chromosome 12 is evaluated by using a DNA probe that marks the centromeric region of chromosome 12. Such a probe is also called CEP12. The ratio of the number of signals of the MDM2 gene, also on chromosome 12, to the chromosome 12 signal [LOINC: 93809-2] can indicate whether or not there is amplification of the MDM2 gene.

Component

  • Chromosome 12 copy number/nucleus

Specimen / system

  • Tiss

Class

  • MOLPATH

Property

  • EntNum

Scale

  • Qn

Method

  • FISH

Related names

  • Chr 12 copy num; Chromosom; Chromosomes; Entitic; Entitic number; Fluorescent in situ hybridization; Molecular pathology; MOLPATH; No; Num; Point in time; QNT; Quan; Quant; Quantitative; Random; Tissue; Tissue, unspecified

Index terms

  • Chr 12 copy num
  • Chromosom
  • Chromosomes
  • Entitic
  • Entitic number
  • Fluorescent in situ hybridization
  • Molecular pathology
  • MOLPATH
  • No
  • Num
  • Point in time
  • QNT
  • Quan
  • Quant
  • Quantitative
  • Random
  • Tissue
  • Tissue, unspecified