Primary Site--Vulva: What is the primary site of patient with an excision of a left vulvar cystic mass showing focal mammary-type ductal carcinoma in situ (DCIS) on 11/06/2020? See Discussion.
Solid Tumor Rules (2018/2021)/Multiple primaries--Prostate: Is basal cell carcinoma with focal squamous differentiation and a small focus of infiltrating prostatic adenocarcinoma one or two primaries and if one, is the histology 8147/3? See Discussion.
EOD 2018/Lymph Nodes-EOD--Breast: Should Extent of Disease (EOD) Regional Nodes be coded as 150 (Clinical assessment only; Positive needle core biopsy/fine needle aspirate [FNA]) when the patient has a biopsy-proven, clinically apparent, movable ipsilateral axillary lymph node, but no evidence of involvement at surgery after neoadjuvant therapy? See Discussion.
Behavior--Breast: Should the behavior change to /3, invasive, to get a case to clear edits? The histology of this breast case is ductal carcinoma in situ (DCIS), 8500/2. Lymph nodes are positive for micro-mets (0.2 mm-2 mm). SEER Summary Stage: 3, regional lymph nodes positive. This creates an edit for SEER Summary Stage due to the behavior code of /2, in situ.
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.
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?
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.
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?
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.
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