81746-0
LaboratoryChromosome region 17p13.1 deletion in Blood or Tissue by FISH
Definition
Deletions at 17p13.1 involving the TP53 gene can be detected by FISH and used for the diagnosis of chronic lymphocytic leukemia (CLL), multiple myeloma as well as other forms of cancer. Labs will report the number of cells that have the probe deletion out of total number of cells examined (e.g. 80 out of 100 cells, or 80%). Results are typically reported in ISCN (International System for Human Cytogenetic Nomenclature) format [LOINC: 62356-1]. This term is based, but not limited in use to, the Vysis LSI p53 (17p13.1) probe, which targets the TP53 gene and flanking regions.
LOINC 6-Axis Classification
Component
Chromosome region 17p13.1 deletion
Property
Find
Time Aspect
Pt
System
Bld/Tiss
Scale Type
Doc
Method Type
FISH
Details
Class
MOLPATH.DELDUP
Order/Observation
Both
Short Name
Chr 17p13.1 Del Bld/T FISH
Display Name
17p13.1 del FISH Doc (Bld/Tiss)
Related Names
Frequently Asked Questions
What is LOINC code 81746-0?
LOINC code 81746-0 identifies "Chromosome region 17p13.1 deletion in Blood or Tissue by FISH". Deletions at 17p13.1 involving the TP53 gene can be detected by FISH and used for the diagnosis of chronic lymphocytic leukemia (CLL), multiple myeloma as well as other forms of cancer. Labs will report the number of cells that have the probe deletion out of total number of cells examined (e.g. 80 out of 100 cells, or 80%). Results are typically reported in ISCN (International System for Human Cytogenetic Nomenclature) format [LOINC: 62356-1]. This term is based, but not limited in use to, the Vysis LSI p53 (17p13.1) probe, which targets the TP53 gene and flanking regions.
What does 81746-0 measure?
This code measures Chromosome region 17p13.1 deletion in Bld/Tiss. It belongs to the MOLPATH.DELDUP class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.