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Report Produced: 09/16/2026 03:44 AM

Report Question ID Question Discussion Answer Cancer Site Category Data Item Category Year
20061021 Histology (Pre-2007)--Bladder: How is a "carcinoma with squamous, mucinous, and signet ring cell features" coded?

For tumors diagnosed prior to 2007:

Code histology to 8490 [Signet ring cell carcinoma]. Rule 7 on page 87 of the 2004 SEER Manual applies to this case.

Rule 7: Code the numerically higher ICD-O-3 code. This is the rule with the lowest priority and should be used infrequently.

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.

 Bladder Histology 2006
20210025

2021 SEER Manual/Primary Site--Ovary, Fallopian Tube: What information takes precedence for coding the primary site in cases with high grade serous carcinoma that are clinically called ovarian but on pathology, the pathologist calls the primary site fallopian tube and the gynecology oncology/managing phsyician continues to call the cases ovarian. Both the ovary and tube are involved. Sometimes also referred to as "tubo-ovarian."

When the choice is between ovary, fallopian tube, or primary peritoneal, any indication of fallopian tube involvement indicates the primary tumor is a tubal primary. Fallopian tube primary carcinomas can be confirmed by reviewing the fallopian tube sections as described on the pathology report to document the presence of either serous tubal intraepithelial carcinoma (STIC) and/or tubal mucosal invasive serous carcinoma.

If there is no information about the fallopian tubes, refer to the histology and look at the treatment plans for the patient. If all else fails, you may have to assign C579 as a last resort. Use text fields to document the details.

For additional information, see the CAP GYN protocol, Table 1: Criteria for assignment of primary site in tubo-ovarian serous carcinomas.

 Fallopian Tube, Ovary Primary site 2021
20210030

Primary site--Breast: Patient was diagnosed with invasive ductal carcinoma of the left breast. Site of mass is 2:00 to 3:00. What is the correct site code, C504 upper outer quadrant (UOQ) or C50.8 (overlapping)?

Assign C504, UOQ, for a left breast primary mass at 2:00 to 3:00. See the illustration in the SEER Coding Guidelines for breast, https://seer.cancer.gov/manuals/2021/AppendixC/Coding_Guidelines_Breast_2021.pdf

 Breast Primary site 2021
20061022

Reportability: Are glomus jugulare tumors reportable?

Begining with cases diagnosed 2021, glomus jugulare tumor, NOS is reportable. It is listed in ICD-O-3.2 with a behavior code of /3.

 N/A N/A 2006