93801-9
LaboratoryChromosome 1 polysomy [Presence] in Tissue by FISH
Definition
This test determines if chromosome 1 polysomy is present in tissue (tumor) specimens. Chromosome 1 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 1 polysomy is a prognostic indicator of poorer outcome for oligodendroglioma patients.
LOINC 6-Axis Classification
Component
Chromosome 1 polysomy
Property
PrThr
Time Aspect
Pt
System
Tiss
Scale Type
Ord
Method Type
FISH
Details
Class
MOLPATH
Order/Observation
Observation
Short Name
Chr 1 polysomy Tiss Ql FISH
Display Name
Chr 1 polysomy FISH Ql (Tiss)
Related Names
Frequently Asked Questions
What is LOINC code 93801-9?
LOINC code 93801-9 identifies "Chromosome 1 polysomy [Presence] in Tissue by FISH". This test determines if chromosome 1 polysomy is present in tissue (tumor) specimens. Chromosome 1 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 1 polysomy is a prognostic indicator of poorer outcome for oligodendroglioma patients.
What does 93801-9 measure?
This code measures Chromosome 1 polysomy in Tiss. It belongs to the MOLPATH 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.