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Definition

Whether a person with a solid tumour has received neoadjuvant therapy, as represented by a code.

Components

Data Element (this item)

Representation

This representation is based on the value domain for this data element, more information is available at " Yes/no code N ".
Data Type Boolean
Format N
Maximum character length 1
Values
Value Meaning Start Date End Date
Permissible Values 2 No
1 Yes

Comments

Guide for use:

To be reported when therapy is received after a diagnosis of cancer and prior to primary surgical treatment.

This data item is used to flag cases in which tumour descriptors, for example solid tumour size, may be inaccurate due to shrinkage from neoadjuvant therapy.

Yes - indicates that the client has received neo-adjuvant therapy after a diagnosis of cancer and prior to primary surgical treatment

No - indicates that the client did not receive neo-adjuvant therapy after a diagnosis of cancer and prior to primary surgical treatment

For invasive breast cancer:

Information is obtained from

  • Clinical notes on pathology report mentions that patient underwent chemotherapy prior to surgery
  • Microscopy section of pathology report describes tumour changes as a result of neoadjuvant therapy (coder may be alerted to look for this detail by a long interval between biopsy and wider excision)
  • Hospital notification indicates that admission if for chemotherapy only (and admission date is before that for surgery)

Origin:

National Breast and Ovarian Cancer Centre (NBOCC)

Australasian Association of Cancer Registries (AACR)

Australian Institute of Health and Welfare (AIHW)

Comments:

Preoperative chemotherapy and/or radiotherapy may be received after a diagnosis of cancer but before surgical treatment.

The effects of chemotherapy and/or radiotherapy prior to surgery will shrink the tumour and so the size of the tumour found from the subsequent surgical excision will be smaller than the original size of the tumour at the time of diagnosis. This impacts on the TNM-T and staging classification, and is important to take into account for analysis and research.

References

Johnson CH, Adamo M (eds.), SEER Program Coding and Staging Manual 2007. National Cancer Institute, NIH Publication number 07-5581, Bethesda, MD 2007.
This content Based on Australian Institute of Health and Welfare material. Attribution provided as required under the AIHW CC-BY licence.

Related content

Relation Count
Input in Derivations 0
Output in Derivations 0
Inclusion in Data Set Specifications 2
Inclusion in Data Distributions 0
As a numerator in an Indicator 0
As a denominator in an Indicator 0
As a disaggregation in an Indicator 0