SEER Inquiry System - Question 20091011 Details

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Question 20091011

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Inquiry Details

References:

2007 SEER Manual, C-621, C-635, C-645. Appendix C

Question:

MP/H Rules/Histology--Breast: What histology is coded for a tumor diagnosed as "intraductal papillary carcinoma (neuroendocrine differentiation)"? See Discussion.

Discussion:

Final diagnosis states: Right breast, excisional bx with findings most consistent with intraductal papillary carcinoma (neuroendocrine DCIS). The path micro states: the morphologic features are those of a neuroendrocrine-type tumor & IHC stains confirm neuroendocrine differentiation.

Answer:

For cases diagnosed 2007 or later, assign code 8503/2 [Intraductal papillary carcinoma] using Breast rule H2. Code the histology from the final diagnosis.

There is no code for neuroendocrine DCIS in ICD-O-3.

Cancer Site Category:

Breast

Data Item Category:

Histology

Other Category:

N/A

Year:

2009