SEER Inquiry System - Report
Produced: 10/09/2025 2:46 AM
Question 20051053
Inquiry Details
References:
2004 SEER Manual, 86-87
Question:
Discussion:
Answer:
For tumors diagnosed prior to 2007:
This is a single primary: the adenocarcinoma with the Paget representing intraepithelial extension of the process. Tumor cells can invade from their place in the epithelium into the underlying stroma either at the primary site, or at their extension site (skin).
For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.