SEER Inquiry System - Search

2024 SEER Manual/Primary Site--Retroperitoneum: What is the primary site code for a final diagnosis of endometrioid adenocarcinoma from a biopsy of a right retroperitoneal mass? See Discussion. 

Reportability/Histology--Lung: Are adenocarcinoma spectrum lesions on lung imaging reportable when no further information is available? See Discussion.

Reportability/Histology--Conjunctiva: Is low-grade conjunctival melanocytic intraepithelial lesion (LG-CMIL) with focal high-grade features of the conjunctiva (C690) reportable? If reportable, what histology should be assigned?

Reportability/Histology--Endometrium: Are the following terms and diagnoses synonymous with endometrioid intraepithelial neoplasia (EIN) and therefore reportable?

1. Atypical glandular epithelium

2. Isthmic-type mucosa with focal severe atypia

3. Simple hyperplasia without atypia

4. EIN/complex atypical hyperplasia (EIN/CAH) or focal EIN/CAH (on biopsy but the resection pathology or operative note states no   EIN/CAH/atypical hyperplasia)

Solid Tumor Rules/Histology--Fallopian Tube: How is histology coded for a high-grade serous carcinoma with admixed yolk sac tumor of the right fallopian tube? See Discussion.

Reportability/Histology--Heme & Lymphoid Neoplasms: Is a diagnosis of myeloid stem cell disorder or myeloid stem cell neoplasm reportable when the differential diagnosis includes only reportable neoplasms? If so, how should histology be coded? See Discussion.

Reportability/Behavior--Ovary: Is ovarian mucinous borderline tumor with foci of multifocal intraepithelial carcinoma reportable?

Reportability/Histology--Appendix: Is carcinoid of the appendix reportable? If yes, when did this take effect?

Reportability/Behavior: Our registry collects some borderline (behavior /1) cases that are not reportable to SEER or any other standard setters. Can we assign a behavior code of /2 to these cases?