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.

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MP/H Rules/Multiple primaries--Breast: Does rule M10 apply in this situation?


L breast simple mastectomy = 2.0 cm INVASIVE DUCTAL CARCINOMA with an incidental finding of separate 1.0 cm INVASIVE LOBULAR CARCINOMA; pathologist specifically states the tumors are morphologically different. The tumors are both pure Ductal/pure Lobular.

Final Sep 16 2015

Surgery of Primary Site--Pleura: How is this field coded if the patient underwent an exploratory thoracotomy with partial decortication that excised some, but not all, of the pleural mesothelioma tumors? See Discussion.

Final Aug 27 2015

Reportability--Skin: Is this reportable? If so, what is the correct histology code? The pathology report says, " bx of 0.7 x 0.5 cm gray-pink papule on tan-pink skin of left inferior centra malar cheek revealed invasive SCC of skin, signet ring cell type, invading papillary dermis; LVI neg; "findings are diag of SCC exhibiting the rare signet ring histologic subtype"; deep margin positive for tumor but peripheral margins clear;".

Final Aug 24 2015

Reportability/MP/H Rules/Histology: Is malignant perivascular epithelioid cell tumor (PEComa) reportable, and if so, what is the histology code?

Final Aug 21 2015

Reportablility--Breast: Is lobular neoplasia reportable as lobular carcinoma in situ? See Discussion.

Final Aug 21 2015

Reportability/MP/H--Kidney: "Multilocular clear cell renal cell carcinoma." Would this be coded 8310? See discussion.

Final Aug 21 2015

Primary site--Anus/Anal Canal: What site do you code squamous cell carcinoma of the anal verge?

Final Aug 21 2015

MP/H/Histology/neuroendocrine : How should the following histologies with neuroendocrine differentiation be coded?

1.  Bladder - Invasive urothelial carcinoma with neuroendocrine differentiation

2.  Nasopharnyx - Undifferentiated nonkeratinizing nasopharyngeal carcinoma with neuroendocrine differentiation

3.  Ductal carcinoma in situ (with neuroendocrine features) cribriform and solid patterns

See discussion.

Final Aug 21 2015

MP/H/Histology--Lung: Would you code a lung primary of "non-small cell carcinoma with neuroendocrine differentiation" to non-small cell carcinoma (8046/3) or carcinoma with neuroendocrine differentiation (8574/3)? See discussion.

Final Aug 21 2015

MP/H/Multiple Primaries--Lung: When using the Lung Multiple Primary rules, Rule M6 (single tumor in each lung), are nodules to be interpreted as tumors or are they tumors only if they are stated to be suspicious for malignancy or another term that constitutes a diagnosis? MRI states: "multiple subcentimeter pulmonary nodules."

Final Aug 21 2015
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