SEER Inquiry System - Question 20041037 Details

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Question 20041037

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Inquiry Details

References:

#1: SEER Program Code Man, 3rd Ed, 12-13. January 1998

#2: AJCC Cancer Staging Manual, 97. Sixth Edition

Question:

Multiple Primaries (Pre-2007)/Histology (Pre-2007)/Grade, Differentiation--Thyroid: How many primaries, with what histologies should be coded when a thyroidectomy reveals "anaplastic carcinoma" and "papillary carcinoma" occurring as two separate tumors? See Discussion.

Discussion:

Example: Thyroidectomy revealed anaplastic carcinoma of the thyroid with mets to lymph nodes. The path report stated that the thyroid specimen also contained a small papillary carcinoma. Differentiation for the papillary carcinoma was not stated.

Answer:

For tumors diagnosed prior to 2007:

Accession and code as two thyroid primaries:

Anaplastic carcinoma [8021/34]

Papillary carcinoma [8260/39]

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:

Thyroid

Data Item Category:

Histology

Other Category:

Multiple primaries

Year:

2004