84891-1
LaboratoryTumor response to neoadjuvant therapy
Definition
The response of the tumor to neoadjuvant treatment, such as chemotherapy and radiotherapy. Chemotherapy and/or radiotherapy before resection is associated with significant downstaging and improved prognosis. These specimens require close gross examination and additional blocking to demonstrate tumor. The degree of tumor regression has been shown to correlate with prognosis. This term was created for, but not limited in use to, the Colorectal Cancer Structured Reporting Protocol (2nd Edition, 2012) developed by the Royal College of Pathologists of Australasia (RCPA).
LOINC 6-Axis Classification
Component
Response to neoadjuvant therapy
Property
PrThr
Time Aspect
Pt
System
Colorectal cancer specimen
Scale Type
Ord
Method Type
N/A
Details
Class
PATH
Order/Observation
Observation
Short Name
Tumor resp to neoadjvt therapy
Display Name
Response to neoadjuvant therapy Ql (Colorectal cancer specimen)
Related Names
Frequently Asked Questions
What is LOINC code 84891-1?
LOINC code 84891-1 identifies "Tumor response to neoadjuvant therapy". The response of the tumor to neoadjuvant treatment, such as chemotherapy and radiotherapy. Chemotherapy and/or radiotherapy before resection is associated with significant downstaging and improved prognosis. These specimens require close gross examination and additional blocking to demonstrate tumor. The degree of tumor regression has been shown to correlate with prognosis. This term was created for, but not limited in use to, the Colorectal Cancer Structured Reporting Protocol (2nd Edition, 2012) developed by the Royal College of Pathologists of Australasia (RCPA).
What does 84891-1 measure?
This code measures Response to neoadjuvant therapy in Colorectal cancer specimen. It belongs to the PATH 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.