SEER Inquiry System - View

Question: 20140011 Status
Final

References
Source 1:   2007 MP/H Rules
pgs:  
Notes:  
Source 2:  
pgs:  
Notes:  


Question
MP/H Rules/Multiple primaries--Breast: Is the diagnosis of Paget disease two years after a diagnosis of infiltrating duct carcinoma of the same breast a new primary? See discussion.

Discussion
A patient was diagnosed and treated in 2010 for infiltrating duct carcinoma of the left breast. There was no mention of Paget disease. Then in 2012, the same patient was diagnosed with Paget disease of the nipple of the left breast. Rule M9 seems to apply; so this is the same primary, correct? And the information about the Paget disease is simply never captured, correct?

Answer
Yes, Rule M9 makes this a single primary. You could revise the original histology code to 8541/3 on the assumption that Paget was present at the original diagnosis, but not yet identified.

History


Last Updated
01/24/2014

Date Finalized
02/28/2014