SEER Inquiry System - Search

First Course Treatment/Chemotherapy--Colon: Is maintenance therapy coded as part of the first course of treatment or as part of subsequent course of treatment?

Primary site--Breast: how is subsite coded for a breast cancer when it is described as central portion between 1-3:00 or central portion at 12:00?

Reportability/In situ--Prostate: Has there been a change in reportability for prostatic intraepithelial neoplasia (PIN III) (C619)? The 2018 SEER Manual notes: Collection stopped effective with cases diagnosed 01/01/2001 and later; however, on the casefinding list effective 10/01/2019, code D07.5, carcinoma in situ of prostate, is listed as reportable.

Histology--Penis: What is the histology code of a glans penis primary with the final diagnosis squamous cell carcinoma, verrucous type? See Discussion.

Solid Tumor Rules (2018)/Multiple primaries--Lung: How are Primary Site and EOD Primary Tumor coded when a patient is diagnosed with four invasive tumors in the right lung that represent three separate primaries, but the not otherwise specified (NOS) tumor and one of the specific subtype/variants are in separate lobes? See Discussion.

Multiple Primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned and what M rule applies when a patient is diagnosed with both plasmablastic lymphoma and at least one plasmacytoma? See Discussion.

Reportability--Retina: Is a diagnosis of retinal astrocytoma reportable? See Discussion.

Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when a patient is simultaneously diagnosed with systemic mastocytosis and chronic myelomonocytic leukemia (CMML-0) on a single bone marrow biopsy? See Discussion.

Solid Tumor Rules (2018)/Multiple primaries--Corpus uteri: How many primaries are accessioned for patient with a minimally invasive endometrial adenocarcinoma arising in a polyp in 2001, followed by a metastatic poorly differentiated clear cell carcinoma of gynecologic (GYN) origin in 2019? See Discussion.

First course treatment/Surgery of Primary Site--Corpus uteri: Is an omentectomy performed with a hysterectomy for an endometrial primary site recorded under Surgery of Other Site? See Discussion.