SEER Inquiry System - Search

2018 Solid Tumor Rules/Multiple Primaries--Breast: How many primaries should be reported when a left breast simple mastectomy identifies focal Paget disease of the nipple and 12 axillary nodes positive for metastatic lobular carcinoma (no primary lobular breast tumor identified)?

EOD 2018/EOD Primary Tumor--Tumor Size--Pathologic: How is Tumor Size--Pathologic coded when Extent of Disease (EOD) Primary Tumor is 800 (No evidence of primary tumor) and there has been no surgery to the primary site? See Discussion.

EOD 2018/EOD Primary Tumor/Tumor Size--Clinical--Prostate: How is Tumor Size--Clinical coded when there is an incidental finding of prostate cancer on prostatectomy for another reason? See Discussion.

Reportability/Heme & Lymphoid Neoplasms: Is ALK positive (ALK+) histiocytosis involving the bone marrow and kidney reportable? See Discussion.

Primary site/Biliary tract--Ampulla of Vater: What is the correct primary site code for intra-ampullary and periampullary adenocarcinoma, C241 (8144/3) or C249? See Discussion.

EOD 2018/EOD Primary Tumor--Testis: How is Extent of Disease (EOD) Primary Tumor coded if it appears limited to testis on scrotal ultrasound and is treated with neoadjuvant chemotherapy prior to the orchiectomy when there is no residual tumor (staged as ypT0 disease) and in cases where there is residual tumor? See Discussion.

Histology/Heme & Lymphoid Neoplasms--Leukemia: Is this the correct histology for a case of acute myeloid leukemia (AML) with recurrent genetic abnormalities? If the only information was AML with recurrent genetic abnormalities,"what code would you use: AML, NOS (9861/3) or AML with recurrent genetic abnormalities (9896/3)? See Discussion.

Reportability--Anal Canal: Is a 2021 diagnosis of moderate squamous dysplasia (AIN II) of the anal canal reportable? See Discussion.

Summary Stage 2018/EOD 2018/EOD Primary Tumor--Colon: Does the 2018 SEER Summary Staging Manual, Digestive System Sites, Distinguishing In Situ and Localized Tumors for the Digestive System, #1. b., Exception, include in situ plus intramucosal carcinoma (involvement of the lamina propria and may involve but not penetrate through the muscularis mucosa) (penetration through the muscularis mucosa is behavior code 3.)? This seems to be in conflict with Extent of Disease (EOD) 2018. See Discussion.

Reportability--Skin: Is dermatofibrosarcoma protuberans (DFSP) with fibrosarcomatous transformation synonymous with dermatofibrosarcoma protuberans, fibrosarcomatous, and therefore reportable for diagnosis year 2021 and forward? See Discussion.