SEER Inquiry System - Question 20031067 Details

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Question 20031067

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Inquiry Details

References:

ICD-O-3, 32, 93. Rule H

Question:

Primary Site/Histology (Pre-2007)/Sarcoma: How do you code these fields for a vulvar tumor diagnosed by FISH analysis as "extra-osseous Ewing sarcoma?" See Description.

Discussion:

A literature search relates soft tissue malignancy described as "extra-osseous Ewing sarcoma/PNET." Neither are compatible with site.

Answer:

For tumors diagnosed prior to 2007:

Code histology as 9260/3 [Ewing sarcoma]. ICD-O-3 does not have a code for extra-osseous Ewing sarcoma (EOE). Ignore the topography code listed in ICD-O and use the code for the primary site (vulva).

Site codes associated with morphology codes in the ICD-O are the most common sites and are not intended to limit coding only to those sites.

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:

Sarcoma

Data Item Category:

Histology, Primary site

Other Category:

N/A

Year:

2003