Alternate Name Item # Length Source of Standard Implemented Year Implemented Version Retired Year Retired Version Column #
2785 2 AJCC 2010 12 1101 - 1102
Description
This data item belongs to the Collaborative Stage (CS) Data Collection System which is based on the AJCC Cancer Staging Manual, 6th and 7th editions. The post-treatment data items measure the amount of tumor remaining after neoadjuvant therapy (systemic therapy or radiation therapy prior to surgery).

The implementation of this data item has been deferred indefinitely.
Rationale
The post-treatment data items will be used for analysis of the effectiveness of neoadjuvant therapy.
Codes (See the most current version of the Collaborative Stage Data Collection System (http://cancerstaging.org),13 for rules and site-specific codes and coding structures.)