93803-5LOINC 2.82
Chromosome 19 polysomy [Presence] in Tissue by FISH
Chr 19 polysomy Tiss Ql FISH
Definition
- This test determines if chromosome 19 polysomy is present in tissue (tumor) specimens. Polysomy is defined as 3 or more signals for 1q and/or 19p in >30% of tumor cells with concurrent 1p/19q deletion.[PMID: 19808867] Chromosome 19 polysomy is a prognostic indicator of poorer outcome for oligodendroglioma patients.
Component
- Chromosome 19 polysomy
Specimen / system
- Tiss
Class
- MOLPATH
Property
- PrThr
Scale
- Ord
Method
- FISH
Related names
- Chr 19 polysomy; Chromosom; Chromosomes; Fluorescent in situ hybridization; Molecular pathology; MOLPATH; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Tissue; Tissue, unspecified
Index terms
- Chr 19 polysomy
- Chromosom
- Chromosomes
- Fluorescent in situ hybridization
- Molecular pathology
- MOLPATH
- Ordinal
- Point in time
- PR
- QL
- Qual
- Qualitative
- Random
- Screen
- Tissue
- Tissue, unspecified