SEER Inquiry System - Question 20010156 Details

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Question 20010156

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Inquiry Details

References:

#1: Histology Coding Com Decision. 2003

#2: 2004 SEER Manual, 11, 13

Question:

Multiple Primaries (Pre-2007)--Breast: Patient diagnosed with two lumps in same breast, different quadrants at same time. One was ductal carcinoma, cribriform type; the other was ductal carcinoma. How many primaries do we code? See discussion.

Discussion:

If the breast cancer had been diagnosed in 2000 we would have coded this case as one primary, code to higher ductal ca. For a 2001 or later diagnosis, should this be coded as two primaries?

Answer:

For cases diagnosed 1998-2003:

Code this case as two primaries if the tumors are separate. Separate tumors have clear (negative) margins. If the tumors are not separate, code as one primary.

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.

Cancer Site Category:

Breast

Data Item Category:

N/A

Other Category:

Multiple primaries

Year:

2001