SEER Inquiry System - Question 20071087 Details

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Question 20071087

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Inquiry Details

References:

#1: 2007 SEER Manual, C-691 - C-692

#2: 2007 MP/H Rules. Breast (M7)

Question:

MP/H Rules/Multiple Primaries--Breast: How many primaries are abstracted when bilateral breasts contain DCIS? Is a physician statement referring to this situation as one primary ignored? See Discussion.

Discussion:

Patient has microcalcifications both breasts. Has bilateral mastectomy. Path report states Left breast multifocal DCIS predominantly micropapillary. Right breast two foci of DCIS micropapillary.

Answer:

For cases diagnosed 2007 or later:

There are two primaries in this case.

Using the 2007 MP/H rules for breast, go to the multiple tumors module and start with Rule M4. Stop at rule M7. Tumors on both sides (right and left) are multple primaries.

Always use the 2007 Multiple Primary rules to determine the number of primaries. Do not use the physician statement.

Cancer Site Category:

Breast

Data Item Category:

N/A

Other Category:

Multiple primaries

Year:

2007