SEER Inquiry System - Home

Welcome to the SEER Inquiry System (SINQ). SINQ is a collection of questions that cancer registrars have had while coding cancer cases. Click Search to look for specific questions or to select questions for a Report.

Recent Questions
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MP/H Rules/Multiple primaries--Breast:  Is this the same primary per MP/H Rule M10?  Ductal carcinoma of the left breast in 2013, treated with a lumpectomy. New tumor with ductal and lobular carcinoma in the same breast in 2016. 

Final Apr 14 2017

Reportability/Histology--Colon:  Is tubular adenoma with high grade dysplasia and focal invasion from a pathology report of a colon biopsy reportable?; if so, what is the histology code?

Final Apr 10 2017

Reportability/Date of Diagnosis--Prostate: Is PI-RADS 5 diagnostic of prostate cancer, and if so, can we use the date of the impression on the scan that states PI-RADS category 5 as the diagnosis date?  See Discussion.

Final Apr 04 2017

MP/H Rules/Histology--Brain and CNS:  What is the code for an embryonal tumor with multilayered rosettes. WHO shows the code as 9478/3, but this code is not available for use in the United States.

Final Mar 29 2017

Size of tumor--Breast:  Please clarify guideline #7 if the only size you have is from a CORE biopsy specimen and imaging only states nonspecific sizes, like "architectural distortion" or "calcifications" and a core biopsy pathology reports invasive tumor spans 5mm. Do you use the core biopsy size, or use 999 for clinical tumor size? See discussion.

Final Mar 24 2017

MP/H Rules/Histology--Testis: How should histology be coded for a mixed germ cell tumor that also includes choriocarcinoma now that non-seminomatous mixed germ cell tumors (9065) and seminomatous mixed germ cell tumors (9085) are collapsed for analysis? See Discussion.

Final Mar 23 2017

MPH Rules/Multiple primaries--Melanoma: Does MP/H Rule M7 (diagnosed more than 60 days apart) apply to invasive melanoma cases with margins positive for in situ melanoma, or are these further excision of the original diagnosis and the same primary, even when it appears treatment was complete after the initial excision? See Discussion.

Final Mar 20 2017

MP/H Rules/Multiple primaries--Liver:  How many primaries of the same site and histology are reported if tumors appear years apart but neither is surgically removed?  See Discussion.


Final Mar 20 2017

Reportability/Histology--Heme & Lymphoid Neoplasms: Is a physician statement that a patient has a malignant histiocytic disorder best described as Erdheim-Chester disease reportable? If reportable, should histology be coded to 9751/3? See Discussion.

Final Mar 08 2017

Primary Site/Sarcoma--Breast:  How should the primary site and stage be coded for osteosarcoma of breast?  Is C509 correct or should the code be a different primary site?  When assigning C509, the Collaborative Stage (CS) still pertains to breast cancer and AJCC stages it as a breast cancer and not as a sarcoma. 

Final Mar 07 2017
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