SEER Inquiry System - Search

Histology--Heme & Lymphoid Neoplasms:  How should histology be coded for a pathologic diagnosis of “Follicular lymphoma, diffuse pattern grade 3A of 3, equivalent to diffuse large B cell lymphoma (germinal center cell type)” when later referenced clinically as follicular lymphoma grade 3A? See Discussion.

Solid Tumor Rules/Histology--Ovary:  What is the histology code for an ovarian primary with a pathology report final diagnosis of “Small-Cell Carcinoma (Hypercalcemic Type), Large-Cell Variant” diagnosed in 2012 (using the Multiple Primaries H rules) and one diagnosed in 2024 (using the Solid Tumor Rules)? See Discussion.

Primary Site/Histology--Ovary: We are encountering a primary site, histologic type, and behavior combination edit based on the Cancer PathCHART (CPC) tables. Using the CPC*Search tool, C569 and 8441/3 is a valid combination. The diagnosis date is 01/13/2024. Should an over-ride be applied with this combination?

Solid Tumor Rules/Multiple Primaries--Bladder:  How many primaries and what M Rule applies for a diagnosis of noninvasive micropapillary urothelial carcinoma (8131/2) in 2019, followed by a diagnosis of noninvasive papillary urothelial carcinoma (8130/2) in 2024? 

Reportability--Brain and CNS:  Is an MRI finding of “statistically meningioma” reportable? See Discussion.

Heme & Lymphoid Neoplasms/Histology--Myelodysplastic Neoplasm: What is the histology code for myelodysplastic neoplasm with low blasts and SF3B1 mutation with primary site bone marrow (C421) diagnosed in 2023?

Solid Tumor Rules/Histology--Lung:  What is the histology code for a lung case with a diagnosis only stated as "high-grade neuroendocrine tumor" in 2022? As the disease was advanced, limited workup was done, and no more specific diagnosis was provided. See Discussion.

Update to the Current Manual/SEER*RSA--SEER Site-specific Factor 1: The 2024 SEER Manual and SEER*RSA say that Codes 10-51 are hierarchical; use the highest code that applies (10 is highest, 51 is lowest). Should the guidance say that 51 is highest, 10 is lowest since code 10 is a HPV negative p16 test?

Summary Stage 2018--Ovary:  What is the summary stage for an ovarian primary in 2024, in which the ovary capsule was ruptured with surgical spill? See Discussion.

Solid Tumor Rules/Histology--Brain and CNS: What is the histology code for angiocentric glioma? See Discussion.