SEER Inquiry System - Question 20081110 Details

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Produced: 04/25/2026 9:43 AM

Question 20081110

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Inquiry Details

References:

2007 SEER Manual, C-644. Appendix C

Question:

MP/H Rules--Breast: Is a ductal carcinoma diagnosed in August, 2008 following a lobular-ductal primary diagnosed in February 2007 a new primary? See Discussion.

Discussion:

Patient has two right breast tumors excised in February, 2007. One is lobular and the other ductal - abstracted as single primary per rule M10. Patient presents with new right breast tumor in August, 2008. This is a ductal carcinoma stated to be a recurrence. Would we again stop at M10 (single primary) or continue on to M12 and make this a new primary (difference at third number)?

Answer:

For cases diagnosed 2007 or later:

Stop at rule M10 -- this is the first rule that applies. The 2008 diagnosis is not a new primary.

Cancer Site Category:

Breast

Data Item Category:

N/A

Other Category:

N/A

Year:

2008