Person with cancer—histopathological grade, tertiary Gleason Grade code N
Data Element Attributes
Identifying and definitional attributes | |
Metadata item type: | Data Element |
---|---|
Short name: | Tertiary Gleason Grade |
METEOR identifier: | 496572 |
Registration status: | Health, Standard 14/05/2015 |
Definition: | The tertiary Gleason grade assigned to a prostate cancer, as represented by a code. |
Context: | Only relevant for people with prostate cancer. |
Data Element Concept: | Person with cancer—histopathological grade |
Value Domain: | Gleason grade code N |
Value domain attributes | ||
Representational attributes | ||
Representation class: | Code | |
---|---|---|
Data type: | Number | |
Format: | N | |
Value | Meaning | |
Permissible values: | 1 | Grade 1 |
2 | Grade 2 | |
3 | Grade 3 | |
4 | Grade 4 | |
5 | Grade 5 |
Data element attributes | |
Collection and usage attributes | |
Guide for use: | Tertiary Gleason grade (a specific form of histopathological grade) refers to the tumour pattern that occupies the third greatest area (two other tumour patterns both occupy a greater area) of the prostate, and nearly always represents a smaller area of higher grade (typically 4 or 5). Gleason grades are assigned to a prostate cancer by a pathologist based on sections from a radical prostatectomy specimen. Tertiary Gleason grades are only assigned when there are 3 or more Gleason patterns/grades present. Tertiary Gleason grades are often only recorded when it contains a more aggressive pattern (higher Gleason grade) than primary and secondary grades and are only recorded for resected tissued (not biopsied). Tertiary Gleason grades are virtually always 4 or 5 and are an indicator of how likely it is that a tumour will spread. A low Gleason score without a tertiary grade of 4 or 5 means the cancer tissue is similar to normal prostate tissue and the tumour is less likely to spread; a high Gleason score means the cancer tissue is very different from normal and the tumour is more likely to spread. |
---|---|
Collection methods: | To be sought from pathology reports or patient medical records. |
Comments: | A Gleason grade is a prognostic indicator of prostate cancer which may be used to guide treatment and assess whether appropriate treatment protocols have been used. |
Source and reference attributes | |
Submitting organisation: | Cancer Australia |
Reference documents: | American College of Surgeons 2011. Facility Oncology Registry Data Standards: Revised for 2011. American College of Surgeons: Chicago. Humphrey PA 2004. Gleason grading and prognostic factors in carcinoma of the prostate. Modern pathology, 17(3), p292-306. Royal College of Pathologists of Australasia 2010. Prostate cancer (radical prostatectomy) structured reporting protocol (1st Ed.). Royal College of Pathologists of Australasia: Sydney. |
Relational attributes | |
Implementation in Data Set Specifications: | Prostate cancer (clinical) NBPDS Health, Standard 14/05/2015 |