SEER Inquiry System - Question 20061020 Details

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Question 20061020

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Inquiry Details

References:

#1: 2004 SEER Manual, 13. Rule 6

#2: ICD-O-3

Question:

Multiple Primaries (Pre-2007)/Histology (Pre-2007)--Breast: For cases diagnosed in 2005, if a specimen contains an invasive 4.5 cm lobular carcinoma of the right breast and also has a tiny focus of intraepidermal tumors cells [Paget disease of nipple], how many cases should be abstracted and how should the histology field(s) be coded?

Discussion:

Answer:

For tumors diagnosed prior to 2007:

There are two primaries in this example:

1. Invasive lobular carcinoma [8520/3]

2. In situ Paget disease of nipple [8540/2].

There is no combination code for lobular carcinoma and Paget disease.

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:

Histology

Other Category:

Multiple primaries

Year:

2006