SEER Inquiry System - Search

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.

Primary site--Breast: Patient was diagnosed with invasive ductal carcinoma of the left breast. Site of mass is 2:00 to 3:00. What is the correct site code, C504 upper outer quadrant (UOQ) or C50.8 (overlapping)?

Reportability--Brain and CNS: Are lipomas of the spinal column reportable as a benign tumor of the central nervous system (CNS)? This is seen occassionally at our pediatric facility.

Reportability--Liver: Is a diagnosis of Liver Imaging Reporting and Data System (LI-RADS)-Treatment Response (LR-TR) viable nodule seen on imaging and treated with Y-90 radiotherapy reportable? See Discussion.

Reportability/Histology--Endometrium: Is endometrial hyperplasia with atypia equivalent to atypical hyperplasia of the endometrium (8380/2) and thus reportable?

Update to current manual/Lymphovacular invasion--Thyroid: Are psammoma bodies only recorded as vascular invasion in papillary thyroid cancer cases? See Discussion.