The SEER Inquiry System (SINQ) is a searchable collection of questions that cancer registrars have had while coding cancer cases. These are questions submitted by designated registrars in SEER registries. The questions are answered by expert staff and go through a rigorous review process by NCI SEER staff and designated SEER registry staff before being added to SINQ.

Click Search to look for specific questions in SINQ or to select questions for a Report.

If you cannot find an answer to your question, refer to the Ask a SEER Registrar page.

Recent Questions
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Add to Report ID Question Status Last Updated
20210016

Solid Tumor Rules (2018, 2021)/Histology--Kidney: What is the correct histology code for a kidney primary described as clear cell papillary renal cell carcinoma"? Should we use H2 and code 8312/3 or H3 and code 8323/3?

Final Mar 09 2021
20210015

Solid Tumor Rules (2007/2021)/Multiple Primaries--Anus: Have the disease free interval criteria been met for the following case scenario. A patient was diagnosed with anal intraepithelial neoplasia (AIN) III in 7/2018 that was treated with local tumor destruction, followed by Pap smears and biopsies that prove AIN I or AIN II through 2020, before being diagnosed with a reportable AIN II or AIN III in 2021. See Discussion.

Final Mar 04 2021
20210014

Solid Tumor Rules (2018, 2021)/Multiple Primaries--Lung: How many primaries should be reported for a 4/2019 diagnosis of left upper lobe (LUL) adenosquamous carcinoma (left lingula mass biopsy: adenosquamous carcinoma; LUL lung biopsy: pulmonary adenocarcinoma, stated to be a collision tumor and single primary per the Tumor Board), treated with radiation followed by an enlarging LUL mass in 7/2020 found to be squamous cell carcinoma? See Discussion.
 

Final Mar 04 2021
20210012

Solid Tumor Rules (2018, 2021/Multiple Primaries/)--Lung: How many primaries should be reported and what M rule applies when a diagnosis of presumed adenocarcinoma in situ (AIS) of the left lung follows a known diagnosis of progressive multifocal malignant adenocarcinoma in the right lung? See Discussion.

Final Feb 09 2021
20210011

Primary site:  Is C720 the correct primary site for a diagnosis of a paraspinal neuroblastoma on autopsy in a nine month old with Noonan syndrome?  See Discussion.

Final Feb 09 2021
20210010

Reportability--Head & Neck: Is chondrosarcoma, grade 1 reportable for cases diagnosed 01/01/2021 and later? See Discussion.
 

Final Jan 26 2021
20210009

Solid Tumor Rules (2018, 2021)/Histology--Melanoma: In what situation will Rule H4 be used to code the histology to regressing melanoma? See Discussion.


 

Final Jan 26 2021
20210008

Solid Tumor Rules (2018, 2021)/Histology--Melanoma: In what situation will Rule H6 be used to code the histology to lentigo maligna melanoma? See Discussion.
 

Final Jan 26 2021
20210007

First Course Treatment/Reason for No Surgery of Primary Site: How should we be coding Reason For No Surgery of Primary Site for cases where surgery was planned but ultimately cancelled due to progression? See Discussion.

Final Jan 26 2021
20210006

Behavior/Summary Stage 2018--Colon:  What is the correct behavior and Summary Stage for a case of intramucosal adenocarcinoma arising in tubular adenoma? AJCC states this is Tis, though SEER Summary Stagie states this is Localized (code 1).  The histology is 8140/2 (adenocarcinoma in situ), but the SEER Summary Stage is Locallized.

Final Jan 15 2021
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