Registrar Education

AJCC is dedicated to supporting cancer registrars in the transition to directly assigning AJCC TNM stage. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​


 In Situ Neoplasia – AJCC Cancer Staging Manual 8th Edition


​AJCC is announcing a change in staging rules for the AJCC Cancer Staging Manual, Eighth Edition effective with cases diagnosed on or after January 1, 2018, in the assignment of the T category for in situ neoplasia, carcinoma in situ and melanoma in situ.

Starting with the 8th Edition in 2018, the clinical T category will now be cTis. 

  • This rule change for the 8th Edition does not affect cases staged with previous editions prior to 2018.

  • Starting in 2018 for the 8th Edition, other valid T and N categories with the appropriate c and p prefix will be introduced based on 8th Edition rules.


 AJCC Eighth Edition Webinars


The AJCC Eighth Edition webinars are designed to provide instruction on staging rules, common questions, and disease site specifics.  The staging rules will encompass examples from disease site chapters.


 Timing is Everything


Stage Classifications c p yc yp.jpg

Timing is the key to AJCC clinical and pathologic staging.  AJCC stage classification timeframes match the points in time in a patient’s care based on their treatment.  All patients undergoing diagnostic work-up for cancer are assigned clinical staging.  If the patient has surgical treatment, the managing physician assigns pathologic staging.  If the patient receives systemic or radiation therapy, the managing physician assigns posttherapy staging.

The graphic represents the patient care continuum with treatment choices and the resulting stage classifications.  The arrows indicate the starting and ending points for information included in that stage.​


 AJCC 7th Edition Staging Critical Clarifications for Registrars ​


In response to registrar questions in the CAnswer Forum, AJCC will be providing further clarifications and rationale to better assist registrars in staging accurately.

The first topic to be addressed will be​: AJCC Melanoma Staging​


 Seventh Edition Webinars


The AJCC Seventh Edition webinars are designed to provide answers to staging issues for AJCC Seventh Edition staging.  These webinars were developed for the NPCR Education Training Coordinators (ETC) under the cooperative agreement.


 Disease Site Webinars ​​​

​The AJCC Disease Site webinars are designed to provide highlights of the five most common site chapters for AJCC 7th edition staging.  There will be pre- and post-education quizzes to serve as a self-assessment for the information learned.​

 AJCC Curriculum for Registrars

​The AJCC Curriculum for Registrars  launched in January 2015 and is designed to provide education in a step-wise learning environment complete with additional resources to reinforce the information and webinars with interactive quizzes to prompt discussion and serve as a self-assessment for the information learned. ​


Presentations are available for use as self-study or to lecture to a larger group with the accompanying handouts.


This education is supported by the Cooperative Agreement Number DP13-1310 from The Centers for Disease Control and Prevention. The contents are solely the responsibility of the authors and do not necessarily represent the official views of The Centers for Disease Control and Prevention.*