#1: In Situ
Source 1: AJCC Staging Manual, 6th Ed
Reportability/In situ: Are the terms "high grade dysplasia" and "severe dysplasia" synonymous with in situ? See discussion.
On page 116 of the AJCC Cancer Staging Manual, 6th edition it states, "The terms 'high grade dysplasia' or 'severe dysplasia' may be used as synonyms for in situ adenocarcinoma or in situ carcinoma. These cases should be assigned pTis." These terms are not on the synonym list in the SEER Program Code Manual. Does SEER consider these terms synonymous with in situ?
No. SEER does not consider these words synonymous with behavior code 2 [in situ].