SEER Inquiry System - Search

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.

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.

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

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

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.

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.

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.

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.

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?

Update to current manual/Mets at diagnosis fields--Lymphoma: Are distant metastases possible for a lymphoma with a primary site of lymph nodes? The instructions in the SEER manual tell us to assign code 8 in each of the Mets at Dx fields for a lymphoma originating in lymph nodes.