SEER Inquiry System - Search

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.

Reportability/Histology--Head & Neck: Is carcinoma cuniculatum of the hard palate diagnosed in 2017 reportable? Was this rare variant of squamous cell carcinoma (SCC) missed in Casefinding? If reportable, what is the histology code?

Reportability/Histology--Cervix: Is a stratified mucin-producing intraepithelial lesion (SMILE) lesion reportable? Is it reportable if it is invasive SMILE? What is the correct histology? See Discussion.