SEER Inquiry System - Search

Histology--Lung: Is there a better code for SMARCA4-deficient malignant neoplasms than 8000/3 that could be used especially given its aggressive nature? This term is not included in the Lung Solid Tumor Rules or ICD-O-3.1 and 3.2. See Discussion.

Reportability/Histology--Gallbladder: Is Intracholecystic papillary neoplasm (ICPN) with low-grade intraepithelial neoplasia reportable? The primary site is gallbladder.

Solid Tumor Rules (2018)/Multiple primaries--Melanoma: Should a case with treatment delayed due to COVID-19 be abstracted as one or two primaries? It is uncertain if the invasive tumor would be a new tumor, or deeper extension/disease progression from the original tumor. See Discussion.

Solid Tumor Rules (2018)/Multiple primaries--Liver: When does a hepatocellular carcinoma (HCC) recurrence in the same area of the liver get accessioned as a new tumor following TACE/Y90/RFA? If there is a new HCC in the same area as previously treated but it is stated to be recurrent and/or progressive disease, is that evidence of a disease-free interval? If the tumor area is stated to be LR-TR and non-viable, but then a new HCC in that area is diagnosed, does that count as a disease-free interval? See Discussion.

Solid Tumor Rules (2018)/Multiple primaries--Bladder. Would the metastatic diagnosis indicate a new primary? If the metastatic diagnosis indicates a new primary, would the primary site be C688 and date of diagnosis 11/14/18? See Discussion.

Solid Tumor Rules (2018)/Histology--Prostate: How is the histology coded for a diagnosis of mixed prostatic adenocarcinoma (5%) and small cell neuroendocrine carcinoma (95%) from a transurethral resection of the prostate? See Discussion.

Primary site/Unknown and ill-defined site--Melanoma: What is the primary site for a case of metastatic melanoma with an unknown primary site? See Discussion.

Surgery of Primary Site/Multiple primaries--Breast: Should the Surgery of Primary Site for the 2020 diagnosis be coded 51 (Modified radical mastectomy without removal of uninvolved contralateral breast) when a partial mastectomy and axillary lymph node dissection are performed for a 2011 right breast primary and a subsequent 2020 right breast primary is treated with a total mastectomy only? See Discussion.

Summary Stage 2018/EOD 2018--Lymphoma Orbital Adnexa: What is the correct Summary Stage 2018 (SS2018) for the site/histology Orbit, NOS (C696), 9699/3? In SEER*RSA, Extent of Disease (EOD) Primary Tumor references code 7 (Distant), whereas SS2018 assigns code 2 (Regional)? See Discussion.

Solid Tumor Rules/Multiple Primaries--Lung: How many primaries are accessioned when a patient is diagnosed with right lower lobe invasive acinar adenocarcinoma (8551/3) in 2018 and treated with lobectomy, followed by a 2019 right middle lobe cancer (NOS, 8000/3) diagnosed as new stage 1 primary by cancer conference? See Discussion.