SEER Inquiry System - Search

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.

EOD 2018/Regional Nodes--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.

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.

Reportability/Terminology--Head & Neck: Is an "evolving" squamous cell carcinoma of the vermillion border of the left lower lip reportable?

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.

2021 SEER Manual/Primary Site--Ovary, Fallopian Tube: What information takes precedence for coding the primary site in cases with high grade serous carcinoma that are clinically called ovarian but on pathology, the pathologist calls the primary site fallopian tube and the gynecology oncology/managing phsyician continues to call the cases ovarian. Both the ovary and tube are involved. Sometimes also referred to as "tubo-ovarian."

Multiple primaries--Heme & Lymphoid Neoplasms--Lymphoma: Is a case initially submitted as C772 with histology coded 9591/3 (lymphoma, NOS) with a second case submitted as C162 with histology coded 9699/3 (extranodal marginal zone lymphoma of mucosal-associated lymphoid tissue (MALT lymphoma) a single primary or multiple primaries? See Discussion.

Reportability--Heme and Lympoid Neoplasms--Polycythemia vera: Is secondary polycythemia vera reportable? See Discussion.

Histology/Biliary tract--Ampulla of Vater: What is the histology code for Intra ampullary papillary-tubular neoplasm in association with microinvasion? See discussion.

Multiple primaries--Heme and Lymphoid Neoplasms: Is a patient with peripheral blood initially showing chronic myelogenous leukemia (CML), lymph node biopsy showing granulocytic sarcoma (9930/3), and bone marrow biopsy showing acute myeloid leukemia (AML) one or two primaries? See Discussion.